Three boys in a backyard garden bed, smiling, with their family's house behind them.
plant pre-launch

For every grower.
Wherever you are in the journey.

A zone-aware growing companion that tells you what to do, when, calibrated to where you live and how much you already know. Free to start. Built in public, alongside the growers who use it.

What is plant

A growing companion calibrated to where you live.

plant is a freemium iOS growing companion built for backyard food growers. It tells you what to do, when, calibrated to your zone, your local weather, and how much you already know. A beginner/seasoned toggle adjusts the language and depth of every action so the same product serves a first-season grower and a twenty-season grower without patronizing either. Free tier gives you the full crop database, harvest journal, and frost alerts. Plant Pro unlocks deeper personalization.

For anyone with a patch of ground and something to grow.

A young leaf-lettuce seedling growing in dark, rich soil.
The library

Every crop, every zone, written by people who have grown them.

Roughly 1,000 zone-by-crop pages in the works, with the first verified anchors going live now. Browse by category, or jump straight to your crop.

Root Vegetables
7
Fruiting Veg
5
Fig & Subtropical
4
Fruit
1
Mushrooms
5
  • Button Mushroom
  • Lion's Mane Mushroom
  • Oyster Mushroom
  • Shiitake Mushroom
  • +1 more →
Companion & Pollinator
10
Edible & Harvest
4
Native & Specialty
3
Visit the guides hub →
The mission

More than half of American households don't grow any of their own food. We're building the tool that changes that.

The pandemic showed 18 million people tried. Most quit by season three. The reason isn't desire, it's that no tool tells growers what to do, when, where they live, calibrated to how much they already know. plant exists to fix that. The long view: move the needle on how much of what Americans eat comes from the ground they live on.

Read the full story →
A boy crouching in a raised garden bed, examining the top of a young carrot plant in golden afternoon light.
Built together

Every guide starts as somebody's notebook.

plant gets sharper when the people growing from it write back. The tip that saved your tomatoes. The recipe your grandmother made every August. We collect them, and they make the next season's library better than the last.

October 2027

Back the app you'd want.

The iOS app launches October 2027 on Kickstarter. The web library is the gateway. The app is the product: tracker in your pocket, frost alerts the morning of, harvest journal, community feed. Founding members back it before it ships, lock the rate forever, and join the beta.

One daily wrap, not a firehose:

One daily wrap points you to your to-do list in the app. Past that, we only ping you for weather and harvest moments that can't wait.

Tap through it yourself:

Grow what matters.
Together.

Let's set up your garden in about a minute.

Where do you grow?

Your zone sets every date.

93221
Zone 9b Exeter, California

Popular first crops · Zone 9b

You're set

Zone 9b · Exeter, California

We'll line up what to do for cherry tomatoes, carrots, and basil, timed to your zone.

Open plant to see what to do this week.

Thursday · July 23 · Zone 9b

Good morning, Sarah

A real scorcher today. Tomatoes are ready to pick, the carrot bed wants prepping for fall, and lettuce stays on pause. Four things to check across your beds. Heat day, 97 high. Tomato picking is daily now, carrot bed preps for the fall sowing, lettuce holds. Four tasks across four beds.

Heat watch

Climbing to 97°F this afternoon

Water deeply this evening after the sun drops, and give leafy crops some afternoon shade if you can. Deep-soak at dusk; moist soil buffers overnight heat. Shade cloth on the leafy beds through the weekend.

97° high · 66° low · 0% rain · 6 mph wind

Today4 to do

Pick ripe cherry tomatoes

The vines are in full swing. Pick anything fully colored; more ripen every day. Peak set. Pick at full color daily to keep the trusses producing. Cherry Tomato

Now

Prep the carrot bed for fall

Spring carrots are done. Loosen the soil now; fall sowing opens in August. Bed is resting. Work in compost; fall sowing opens Aug. Carrot

On schedule

Lettuce is on heat pause

Too hot to sow lettuce now. Sowing opens again in August. Heat pause. Resume sowing in Aug. Lettuce (Leaf)

Window closing

Peach harvest is open

Your window runs May 20 - Jul 25. Pick fruit that gives slightly when pressed. Window May 20 - Jul 25. Pick at first give; the top of the tree ripens first. Peach

On schedule
Worth notingTap to log
Coming upNext sowings
Carrot Sow in August
Lettuce (Leaf) Resume in August
Spinach Sow in September

Reading room

Chosen for your garden and Zone 9b

Tied to today WATERING

Water deep, not often

Why one long soak beats a daily sprinkle, especially in a heat wave.

SOIL

Know your soil

The seven soil types, and how to work with yours.

Resolved for Exeter, California · Weather from Apple Weather

The Encyclopedia · Zone 9b

Learn

Every crop, from whether it suits your garden to when to plant and how to harvest.

In season now

Cherry Tomato

in Zone 9b, this week

Harvesting now · Through Nov 22
Live 92° and sunny today. Water deeply this evening.
Toxic to pets Shown: Sungold Cherry Tomato, mature plant
Fig. 01 / Cherry Tomato, matureZone 9b
Mature in
55 to 70d
from sowing
Sunlight
Full sun
6 to 8 hrs
Spacing
24 to 36"
between plants
Soil pH
6 to 6.8
slightly acidic
Variety Sungold
about 60 days

The easiest tomato to start with, and there's a specific reason why. Most cherry tomatoes are indeterminate, meaning the plant keeps producing new flower clusters and fruit continuously from early summer until frost, instead of ripening everything at once and stopping. One plant can give you handfuls of tomatoes over 10-14 weeks. That same continuous growth habit also means the plant recovers better from uneven watering or a missed feeding than a tomato that puts everything into one big harvest. Modern hybrid varieties like Sun Gold and Sweet 100 also have built-in disease resistance, which lowers the chances of losing a plant to blight. If you're in a cold zone (3-5), look for short-season varieties labeled under 60 days to maturity. If you're in a warm zone (9-11), you can get a second round of tomatoes by planting again in late summer. For containers or small spaces, compact varieties like Patio Choice or Tumbling Tom are the right pick. Cherry tomatoes are the most forgiving class in the tomato family for first-season growers, for a specific biological reason: most are indeterminate, meaning they continue producing new flower clusters and fruit continuously from first flowering until frost kills the plant. A single healthy plant can yield fruit over 10-14 weeks rather than all at once. The category spans a wide range: round cherries, pear-shaped types, elongated Romas, and cocktail-sized varieties, with fruit sizes from under half an inch to golf-ball. Most modern hybrid cherries (Sun Gold, Sweet 100, Supersweet 100) are also bred for disease tolerance, which further lowers the failure risk. Compact determinate cultivars such as Patio Choice and Tumbling Tom are suited to containers and small-space gardens. In warm climates (zones 9-11), second plantings in late summer can extend harvest into winter. In the coldest growing zones (3-5), short-season varieties (under 60 days to maturity) are the practical choice.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Germination

Days 5 to 10

Tomato seeds need warm soil to sprout, about as warm as a sunny windowsill, or 75°F if you have a soil thermometer. A heating mat under your seed tray is the easiest way to get there. Cover the tray with a clear plastic lid until the first green shoots appear, then take it off. Keep soil temperature in the 70-85°F range. A heat mat makes a real difference for staying in the optimal zone. Cover with a humidity dome until sprouts appear.

Look for: Tiny white root emerging from the seed, then a pale curved shoot pushing up through the soil. The shoot will straighten and the first two small leaves will unfold at the top. Tiny white root emerging from the seed, then a pale shoot pushing upward through the soil.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Seedling

Days 7 to 28

The moment you see the first green sprouts, take off the plastic lid covering your seed tray, as leaving it on causes a fungal problem called damping off that kills seedlings. Move the tray as close to your brightest light as you can get it. If seedlings grow tall and floppy instead of short and stocky, they need more light, not more water; that stretched-out look is called etiolation (reaching for the light), and a weak stem won't fully recover. Remove the humidity dome the moment the first sprouts appear, as waiting causes damping off. Move seedlings as close to your brightest light source as possible. Tomato seedlings require 14-16 hours of light equivalent to bright natural light to grow compact and stocky; at less than that, they etiolate (stretch toward the light) producing a weak, thin stem that never fully recovers. Leggy seedlings are almost always a light deficiency, not a watering problem.

Look for: Two small flat leaves (the seed leaves) open first, then the first true leaves emerge between them, which will have the distinctive serrated edges and smell of tomato leaves. Two seed leaves open flat, then the first true leaves emerging between them, which will look distinctly tomato-shaped.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Established

Days 28 to 56

Before you move seedlings outside, you need to harden them off, meaning giving them short outdoor stints first (start with an hour or two in a sheltered spot), adding more time and sun each day over 7-10 days. Indoor-grown seedlings aren't used to wind, direct sun, or temperature swings; skipping this step shocks the plant and sets it back. When you plant, go deep: bury the stem all the way up to the lowest set of leaves. Tomatoes grow roots from buried stem, so a deeper planting gives you a bigger, more drought-tolerant root system. Begin hardening off 7-10 days before transplant: start with 1-2 hours outdoors in a sheltered spot, extending time and sun exposure each day. Indoor seedlings have thinner cuticles and underdeveloped stomatal regulation, so gradual exposure allows the plant to upregulate protective responses before full outdoor conditions. Plant deep: bury the stem up to the lowest set of leaves. Tomatoes develop adventitious roots from buried stem tissue, so a deeper planting produces a larger, more drought-resistant root system than a shallow one.

Look for: The stem is thicker, the plant has 3 or 4 sets of true leaves, and the color is deep green throughout. If you squeeze the stem gently it holds its shape rather than feeling floppy. Strong stem, 3-4 sets of true leaves, deep green color. Ready to pot up or transplant.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Flowering

Days 45 to 75

When the first yellow flowers appear, change to a tomato fertilizer (those usually have more potassium, which the plant needs for fruit). Each morning, give the flowering stems a gentle shake or tap. This helps the flowers make fruit, and it really does work, especially indoors or in places without much wind. Switch from a balanced fertilizer to a high-potassium, low-nitrogen formulation. Nitrogen drives vegetative growth, which is counterproductive once flowering begins. Potassium governs sugar transport into fruit and is the limiting nutrient for fruit quality and weight at this stage. Gently tap or shake the flowering stems each morning, as tomatoes are self-fertile but require vibration to release pollen efficiently from the anther cone. In still, sheltered environments, this manual step measurably improves fruit set.

Look for: Small bright yellow flowers appearing in clusters, each one star-shaped with petals swept back. Each flower is a potential tomato. Small yellow flowers in clusters. Each flower is a potential fruit.

You are here
Created by potrace 1.16, written by Peter Selinger 2001-2019

Harvest

Days 55 to 80

Pick ripe tomatoes every day or two during peak summer. Ripe fruit left on the vine releases a ripening gas (ethylene) that hurries along the fruit around it, which sounds useful, but in an indeterminate plant that keeps flowering all season, leaving ripe tomatoes hanging too long also pulls the plant's energy away from new flowers and young fruit. Regular picking keeps production moving. Pick regularly, every 1-2 days at peak production. Ripe tomatoes on the vine produce ethylene gas, which accelerates ripening of neighboring fruit and, in indeterminate varieties, can slow the initiation of new flower clusters. Leaving ripe fruit on the vine also creates a physical energy sink: the plant continues investing carbohydrates in already-ripe fruit rather than channeling resources to new flowers and developing fruit.

Look for: Fruit is fully colored (red, orange, or yellow depending on variety) and gives slightly when you press it gently. Very ripe fruit may start to look a little less shiny than it did. Fully colored fruit that gives slightly to a gentle squeeze. The skin may start to lose its sheen when perfectly ripe.

Jan Cold pause
Feb
Mar
Apr Plant
May Growing
Jun Harvest
Now Jul Harvest
Aug Harvest
Sep Harvest
Oct Harvest
Nov Harvest
Dec Cold pause

Plant out Apr 1 - May 1 · Harvest Jun - Nov

Pick when the tomato is fully colored all the way through, red, yellow, orange, or black depending on what you planted, and gives just slightly to a gentle squeeze. The skin shifting from shiny to slightly matte is a reliable visual cue that it's ready. A ripe tomato should twist off easily; if you have to pull hard, give it one more day. Try to harvest in the morning when it's cooler, as tomatoes held in hot sun deteriorate faster. Pick when fully colored, red, yellow, orange, or black depending on variety, and slightly soft to a gentle squeeze. Full color indicates that lycopene synthesis (in red types) or anthocyanin and carotenoid accumulation (in other types) is complete, which correlates with peak sugar content and flavor volatiles. The fruit should detach with a slight twist rather than requiring pulling; resistance to easy separation means the abscission zone has not yet fully formed. The skin losing its sheen is a reliable visual cue: the epidermis transitions from a taut, reflective surface to a slightly matte finish as cell turgor shifts during final ripening. Harvest in the morning when temperatures are cooler, as fruit held at 90°F+ deteriorates faster than fruit harvested and moved to shade.

Harvest window
Jun - Nov
Check
Daily

Every 2 to 3 days in hot weather, and about once a week when it is cool. Plants drink and lose much more water when it is hot, so the soil dries out faster. Plants in containers dry out even quicker and may need checking every day in peak summer heat. Every 2-3 days during hot weather, once a week when temperatures are cool. The difference is driven by evapotranspiration rate: at air temperatures above 80-85°F, plants lose water through leaves several times faster than at 60°F, so the soil dries proportionally faster. Container-grown plants dry out faster still and may need daily checking in peak summer heat.

Tap to spot a watering problem
Overwatered Yellow lower leaves and cracked fruit are the two signs to watch for. Yellow leaves near the bottom of the plant mean the roots are sitting in waterlogged soil, and when the soil stays soggy, air gets squeezed out of it and the roots can't breathe. Cracked fruit usually follows a sudden heavy watering after the soil has been dry: the tomato swells fast and the skin splits. Both problems come from uneven watering, not just too much water overall.Yellow lower leaves, cracked fruit, persistently soggy soil. Yellowing lower leaves indicate roots are sitting in anaerobic (oxygen-depleted) conditions, as waterlogged soil displaces the air pores roots need to respire. Fruit cracking happens when a sudden surge of water causes rapid cell expansion in a fruit whose skin has already stopped stretching; common after heavy rain following a dry spell. Both are signs of inconsistency, not just total volume.
Underwatered Wilting during the day that bounces back overnight is the clearest sign your plant is thirsty: if it perks up after the sun goes down, water is the issue. If flowers drop before forming fruit, the plant may be under water stress: when it can't sustain fruit development, it sheds the flower at the stem (called abscission). Note that extreme heat above 90°F does the same thing, so blossom drop can happen even when you're watering regularly during a heat wave.Wilting leaves that recover overnight, blossom drop, dry cracked soil. Overnight recovery distinguishes water stress from heat stress or disease: if leaves perk up after the temperature drops, moisture is the limiting factor. Blossom drop under drought stress occurs because the plant triggers an abscission layer at the flower stem when it cannot sustain fruit development; high temperatures (above 90°F day / below 55°F night) cause the same response, so both stressors can operate simultaneously.

Cherry tomatoes want soil that drains well and is rich in organic matter. If water sits on top of your bed after rain or stays soggy for more than a day, drainage is a problem, soggy roots will rot even if the soil is otherwise good. The easiest fix for most soils is to work in 2 to 3 inches of compost before planting, which improves both drainage and fertility at once. Tomatoes are heavy feeders, so starting with rich soil means less fertilizing mid-season. Cherry tomatoes perform best in well-drained loam or sandy loam with high organic matter content. Adequate drainage is non-negotiable, waterlogged roots invite both Pythium root rot and nutrient lockout even in otherwise fertile soil. Working in 2 to 3 inches of compost before planting addresses both texture and fertility in one amendment. Tomatoes are heavy feeders, and organically rich soil reduces the mid-season fertilizer burden considerably.

Thrives in LoamSilt loamSandy loam
Tolerates Loamy sandSandy clay loamSilty clay loamClay loam
Struggles in Sandy claySilty clayClay
Drainage
Well draining
Organic matter
High
Preferred pH
6 to 6.8
Tolerated pH
5.5 to 7
4acidicneutral 79

Soil pH is a measure of acidity on a scale from 1 to 14, where 7 is neutral. Tomatoes need it between about 6.0 and 6.8, the slightly acidic range where the nutrients they need are most available. Soils in the interior West (Arizona, Nevada, Utah, Colorado) often run alkaline (above 7), which can cause nutrient problems even when fertilizer is applied; growers in those regions often need to add sulfur before planting. Eastern and Midwestern soils are often naturally in the right range, but a $10 soil test from your local extension office tells you for certain. Tomatoes are particularly sensitive to pH because it governs the solubility of phosphorus, calcium, and magnesium, three nutrients they consume in large quantities. At pH below 5.5, manganese and aluminum become increasingly available at phytotoxic levels; blossom-end rot risk rises as calcium uptake is impaired. Above 7.0, iron and manganese deficiencies drive interveinal chlorosis on younger leaves. In the alkaline soils common across the interior West and alkaline-irrigation regions, growers routinely need to acidify before planting. Eastern soils often run naturally in the preferred range; Pacific Northwest soils vary widely by parent material.

How often
every 2 weeks
Type
Tomato fertilizer
When to start
start when first flowers appear
N · P · K = 5-10-10
TryMiracle-Gro Tomato Plant Food

When you see the first flowers opening, switch fertilizers. Use a balanced or all-purpose fertilizer early in the season, then switch to a tomato-specific or high-potassium fertilizer once flowers appear. Too much nitrogen (the first number on the package) after flowering pushes the plant to grow more leaves instead of fruit. Switch from balanced to high-potassium feed at flowering. Too much nitrogen produces leafy plants with little fruit.

Tap a companion to see why
Carrots Well-grounded
Carrots' deep taproot partitions the root zone differently from tomato's fibrous roots, theoretically reducing below-ground competition. This is a plausible root-zone partitioning inference, not an extension-tested pairing. Carrots' deep taproot partitions the root zone differently from tomato's fibrous roots, theoretically reducing below-ground competition. This is a plausible root-zone partitioning inference, not an extension-tested pairing.
Borage Traditional
Borage flowers attract pollinators over an extended bloom period; may also repel tomato hornworm (traditional claim). Pollinator attraction is biologically plausible; hornworm repellence is tradition. Borage flowers attract pollinators over an extended bloom period; may also repel tomato hornworm (traditional claim). Pollinator attraction is biologically plausible; hornworm repellence is tradition.
Nasturtiums Research-backed
Nasturtiums function as a trap crop for aphids: aphids preferentially colonize nasturtiums, drawing them away from tomatoes. UC IPM documents trap-crop use of nasturtiums in vegetable gardens. Nasturtiums function as a trap crop for aphids: aphids preferentially colonize nasturtiums, drawing them away from tomatoes. UC IPM documents trap-crop use of nasturtiums in vegetable gardens.
Potatoes Research-backed
Both are Solanaceae and share primary diseases (late blight, Phytophthora infestans; early blight, Alternaria solani) and several pests. Planting together creates a continuous host bridge that sustains inoculum across the season and into following years. Crop rotation separating Solanaceae is the standard extension recommendation for disease management. Both are Solanaceae and share primary diseases (late blight, Phytophthora infestans; early blight, Alternaria solani) and several pests. Planting together creates a continuous host bridge that sustains inoculum across the season and into following years. Crop rotation separating Solanaceae is the standard extension recommendation for disease management.
Eggplant Research-backed
Same family (Solanaceae), shares Colorado potato beetle pressure and early blight. Interplanting concentrates beetle and disease pressure; separating Solanaceae crops, even within a season, reduces crossover pest load. Same family (Solanaceae), shares Colorado potato beetle pressure and early blight. Interplanting concentrates beetle and disease pressure; separating Solanaceae crops, even within a season, reduces crossover pest load.

Most tomato companion advice is garden tradition rather than tested fact. The clearest exception is marigolds, which can cut down on root pests, but only when planted thickly as a cover crop a couple of months ahead, not scattered among the tomatoes. In practice: keep fennel away, keep tomatoes away from their relatives like potatoes and eggplant if disease has been a problem for you, and try nasturtiums as a trap for aphids if aphids gave you trouble in past seasons. Cherry tomato companions are dominated by traditional lore with selective extension backing. The marigold/nematode connection is the best-documented pairing in this crop's companion set, effective as a dense pre-season cover crop, not as scattered concurrent interplanting. For most growers, the practical guidance is straightforward: avoid fennel, keep tomatoes away from other Solanaceae family members (potatoes, eggplant) if disease pressure is a concern in your region, and consider nasturtiums as an aphid trap crop if aphid pressure was a problem in past seasons.

Tap a problem to diagnose it
Aphids medium · pest
Symptoms

Clusters of tiny soft green or black insects on the growing tips and the undersides of leaves, often so small they look like dots. The leaves may start to curl or feel sticky. You might see ants walking up the stems, as they farm aphids for the sweet liquid the aphids produce.Clusters of tiny soft insects on new growth and leaf undersides. Leaves curl, yellow, or become sticky with honeydew. Sooty black mold may follow.

Cause

Tiny soft-bodied insects that cluster on stems and the undersides of leaves. Their numbers can build up very fast in warm weather.Multiple aphid species. Populations explode rapidly in warm weather.

Treat it

Spray the colonies directly with a strong jet of water from a hose. For persistent infestations, apply insecticidal soap or neem oil spray, making sure to coat the leaf undersides where the aphids cluster.Blast off with strong water jet. Apply insecticidal soap or neem oil directly to colonies. Introduce ladybugs or lacewings.

Prevent it

Plant marigolds or nasturtiums near your tomatoes, as both attract beneficial insects that eat aphids. Avoid over-fertilizing with high-nitrogen fertilizer, which produces the soft new growth aphids prefer.Plant marigolds and nasturtiums nearby. Avoid excess nitrogen fertilizer which creates soft, aphid-attractive growth. Encourage beneficial insects.

Verified · 2 extension sources

Tomato hornworm high · pest
Symptoms

Large sections of leaves or whole stems stripped overnight. Look for fat green caterpillars (up to 4 inches long) that blend almost perfectly into the stems, but they are easier to spot by looking for the black droppings on the leaves below.Large green caterpillars (up to 4 inches) stripping foliage. Leaves disappear rapidly. Black droppings on leaves.

Cause

Large green caterpillars, the larvae of a moth, that feed on leaves and stems. They show up mostly in mid to late summer.Manduca quinquemaculata moth larvae. Mid to late summer pest.

Treat it

Hand-pick and drop in soapy water, it sounds simple but it works well. If you spot any with small white oval capsules stuck to their backs, leave those ones; parasitic wasps have laid eggs on them and the wasps will do the work for you.Hand-pick, they are well camouflaged but easy to remove. Apply Bt (Bacillus thuringiensis) spray. If white cocoons visible on back, leave them, as parasitic wasps are doing the work.

Prevent it

Till or turn your soil in autumn to destroy overwintering pupae. Planting dill or fennel nearby attracts the predatory wasps that prey on hornworms.Till soil in autumn to kill overwintering pupae. Plant dill and basil nearby to attract predatory wasps.

Verified · 2 extension sources

Flea beetles low · pest
Symptoms

Tiny round holes scattered across the leaves, especially on young plants and seedlings. If you approach the plant quickly you'll see tiny shiny black beetles jumping off the leaves: that's the flea beetle.Tiny round shot-holes in leaves, especially on seedlings and young plants. Small shiny black beetles jump when disturbed.

Cause

Small dark beetles that jump like fleas when disturbed and chew tiny holes in leaves. They are most active in spring on young plants.Multiple flea beetle species. Most active in spring on young plants.

Treat it

Cover seedlings with floating row cover until plants are a few inches tall and growing strongly. Diatomaceous earth dusted on and around the leaves can help; reapply after rain.Use row covers on seedlings. Apply diatomaceous earth. Neem oil spray.

Prevent it

Transplanting larger, more established plants rather than direct-sowing reduces flea beetle damage, since seedlings are most vulnerable.Delay transplanting until plants are large. Use transplants rather than seeds.

Verified · 2 extension sources

Spider mites medium · pest
Symptoms

Leaves look dusty or stippled, with tiny yellow or tan dots covering the surface. In bad infestations you'll see fine webbing on the undersides of leaves. Leaves may look bronzed or dry at the edges. Mites thrive in hot, dry weather.Fine stippling or yellow dots on leaves. Fine webbing on leaf undersides. Leaves may bronze, dry out, and drop. Worst in hot dry weather.

Cause

Tiny mites, almost too small to see, that feed on leaves and leave fine specks or webbing. They thrive in hot, dry conditions.Tetranychus urticae and related species. Thrives in heat and drought.

Treat it

Spray the undersides of leaves with a strong jet of water every day for a week, which disrupts mite populations significantly. Follow up with neem oil or insecticidal soap applied to leaf undersides if the problem persists.Blast with water repeatedly. Apply neem oil or insecticidal soap to leaf undersides. Increase humidity around plants.

Prevent it

Keep plants well-watered in hot weather; water-stressed plants are more vulnerable. Misting the leaves in the morning raises local humidity, which mites dislike.Keep plants well-watered in hot weather. Avoid dusty conditions. Introduce predatory mites.

Verified · 2 extension sources

Tap a problem to diagnose it
Early blight medium · disease
Symptoms

Dark brown spots on the lower leaves, often with rings inside them like a target pattern. The leaves around the spots turn yellow, then the whole leaf dies and drops. The pattern starts at the bottom of the plant and moves upward.Dark brown spots with concentric rings on lower leaves first. Affected leaves yellow and drop. Spreads upward through plant.

Cause

A fungus that causes dark spots on the lower, older leaves first. It spreads in warm, wet weather, so keep the leaves as dry as you can.Alternaria fungus. Favored by warm wet conditions.

Treat it

Remove and throw away (do not compost) any affected leaves as soon as you spot them. Mulch the soil around the base of the plant to stop rain from splashing soil and fungal spores up onto the lower leaves.Remove affected leaves immediately. Apply copper-based fungicide preventively. Mulch soil to prevent splash-up.

Prevent it

Rotate your tomatoes, avoiding the same spot for at least 3 years. Water at the base of the plant rather than from overhead, and stake the plant to keep the foliage off the ground.Rotate tomatoes every 3-4 years. Water at soil level. Space plants for airflow. Stake to keep foliage off ground.

Verified · 2 extension sources

Blossom end rot medium · disease
Symptoms

Dark, sunken, leathery patches on the bottom of the fruit, the end where the flower was attached. It usually appears on the first fruits of the season. It is not contagious and doesn't spread between plants.Dark, sunken, leathery patch at the bottom (blossom end) of fruit. Affects first fruits most. Not contagious.

Cause

A dark, sunken patch on the bottom of the fruit. It is not a pest or a disease: the fruit cannot get enough calcium, usually because watering has been uneven. Water steadily to prevent it.Calcium deficiency in developing fruit, caused by irregular watering or root damage, not a pest or disease.

Treat it

The fix is consistent watering, not calcium supplements. Mulch around the base to help the soil hold moisture evenly, and water on a regular schedule rather than in big irregular bursts. Remove affected fruit; they won't recover.Mulch to maintain even soil moisture. Water consistently. Foliar calcium spray provides some relief. Remove affected fruit.

Prevent it

Water consistently and deeply, as the most common trigger is irregular watering during fruit development. Avoid disturbing the roots by cultivating too close to the plant, and don't over-fertilize with nitrogen, which pushes the plant to grow faster than it can absorb calcium.Consistent watering is the key prevention. Avoid root disturbance. Do not over-fertilize with nitrogen.

Verified · 2 extension sources

Septoria leaf spot medium · disease
Symptoms

Small circular spots on the leaves, with tan or pale gray centers with dark brown borders, often with a faint yellow halo around the outside. They start on the lower leaves and move upward. Not as aggressive as early blight but disfiguring.Small circular spots with dark borders and pale gray centers, starting on lower leaves. Spots may have yellow halos.

Cause

A common fungus that makes many small, round spots on the leaves. It spreads in wet conditions, so water at the soil and keep the leaves dry.Septoria lycopersici fungus. One of the most common tomato diseases.

Treat it

Remove affected leaves immediately. Apply copper-based fungicide if the problem is spreading. Improve airflow by staking or caging so leaves aren't touching each other.Remove affected leaves. Apply copper fungicide. Ensure good air circulation.

Prevent it

Water at the soil level rather than overhead. Mulch to prevent soil splash. Rotate tomatoes to a different bed each year.Rotate crops. Water at soil level. Mulch around plants.

Verified · 2 extension sources

Late blight high · disease
Symptoms

Large, irregularly shaped brown patches that look water-soaked and spread fast, days not weeks. In humid weather you may see white fuzzy growth on the undersides of affected leaves. This one is serious; it can kill a healthy plant in a week.Water-soaked, rapidly expanding brown patches on leaves and stems. White fuzzy growth on undersides in humid conditions. Can destroy plants in days.

Cause

A fast-moving disease that can collapse a plant within days in cool, wet weather. Remove and throw away affected plants right away so it does not spread.Phytophthora infestans oomycete. The same pathogen that caused the Irish potato famine. Spreads rapidly in cool wet weather.

Treat it

Remove and destroy all affected plant material immediately, bag it and throw it in the trash, do not compost it. Apply copper-based fungicide preventively if you see it starting in your area and conditions are wet.Remove and destroy all affected material immediately, do not compost. Apply copper fungicide preventively in wet conditions.

Prevent it

Choose disease-resistant varieties whenever possible. Stake for good airflow. Never leave tomato plant debris in the garden over winter, clear it all out at season's end.Plant resistant varieties. Ensure excellent airflow. Never leave tomato debris in the garden over winter.

Verified · 2 extension sources

About 4 to 8 pounds of fruit per plant over the season, and cherry types often land at the higher end when conditions are good. Vining (indeterminate) plants keep producing until frost; bushier (determinate) plants give one big flush and then taper off. 4-8 lbs over the season per plant, with cherry-type hybrids commonly producing at the upper end of that range under good conditions. Indeterminate varieties continue producing until frost; determinate cherry types produce a concentrated flush and then taper off.

On the counter

About 1 to 2 weeks at room temperature, which is where tomatoes keep their best flavor. Set them stem-side down on the counter, out of direct sun, which helps them hold moisture longer.1-2 weeks at room temperature (65-70°F). Ripe tomatoes held at room temperature continue producing small amounts of ethylene, which sustains flavor development. Stem-side down reduces moisture loss through the stem scar, the most permeable point on the fruit surface.

In the fridge

Try not to refrigerate ripe tomatoes. The cold turns the texture mealy and dulls the flavor, and the damage cannot be undone. If a ripe tomato would otherwise go to waste, you can refrigerate it and use it within a day or two.Avoid refrigerating ripe tomatoes. Temperatures below 50-55°F cause chilling injury: cell membranes lose their selective permeability, releasing cell-wall-degrading enzymes that produce the mealy texture and muted flavor of cold-stored tomatoes. The damage is irreversible and occurs within hours at refrigerator temperatures. If a ripe tomato must be saved from immediate waste, refrigerate and use within 1-2 days.

In the freezer

You can freeze whole tomatoes to cook with later, but do not expect to eat them fresh after thawing: freezing makes the texture mushy. One handy upside is that the skins slip right off once thawed, which is great for sauces and cooked dishes.Freeze whole for cooking use, do not attempt to eat thawed tomatoes fresh. Freezing ruptures cell walls, making texture mushy when thawed. The practical benefit is that skins slip off easily after thawing, making frozen tomatoes convenient for sauces and cooked dishes. Blanching before freezing is optional but extends storage quality.

Keep them on the counter, out of direct sun, with the stem scar facing down, which slows moisture loss. Don't stack them in a pile; the weight bruises the ones on the bottom. A single layer in a wide bowl works well. Store at room temperature out of direct sun, stem-side down. Direct sun accelerates softening; stem-side down reduces moisture loss at the stem scar. Do not stack ripe tomatoes in a deep pile, as the weight bruises the bottom layers. A single layer on a countertop or in a wide, shallow bowl works best.

The Encyclopedia · Zone 9b

Learn

Know your soil The seven soil types, and how to work with yours.
Watering How much, how often, and how to tell.
Starting seeds From packet to first true leaves.
Frost and your zone The two dates that shape your whole year.
What is pH? Why some crops sulk in perfect soil.
Pest control Gentle first, and only what works.

Reading now

Know your soil

Every watering schedule, feeding plan, and planting date sits on top of one thing: what your soil is made of.

The squeeze test

Grab a handful of damp soil and squeeze. Sand falls apart, clay holds a shiny ribbon, and loam forms a loose ball that crumbles when poked. That one squeeze tells you most of what you need.

Why it changes your dates

Sandy soil warms early and drains fast, so it plants earlier and waters more often. Clay holds cold and water, so it plants later and waters less. plant folds this into your schedule once you set your soil type.

Working with what you have

You do not fix soil in a season; you feed it. A couple of inches of compost a year moves any soil toward loam, and raised beds let you start with the good stuff.

From the plant education library.

Your toolkit · Zone 9b

Plant

4 x 4 ft Change size
Cherry Tomato
Cherry Tomato
Basil
Basil
Cherry Tomato
Cherry Tomato
Lettuce (Leaf)
Lettuce (Leaf)
Carrot
Carrot
Lettuce (Leaf)
69% full

Tap a crop below to add it, then hold and drag plants to arrange them. Big plants can lean over the edges.

Your toolkit · Zone 9b

Plant

Worth logging now

Flowers open yet? Flowers open yet?

July
Cherry Tomato

First harvest

Third bowl this week. The Sungolds are outpacing us.

1 lb 2 oz
Peach

First ripe peach

Ate it over the sink. No regrets.

May
Cherry Tomato

First blossoms

Flowers opening right on schedule, about two weeks after transplant.

April
Carrot

Thinned the row

Gave them two inches each. Tops are looking strong.

Sarah's garden · Zone 9b

Garden

9 crops growing

3 ready to pick

Raised bed 1 3 plants
Cherry Tomato Sungold
ready
Basil Genovese
pinch weekly
Marigold
in bloom
Raised bed 2 2 plants
Carrot
sow Aug
Radish
12 days
Planter 2 plants
Lettuce (Leaf)
heat pause
Chives
ready
In ground 2 plants
Peach
ready
Strawberries
runners
Coming up to plant 3
Carrot Sow in August
Lettuce (Leaf) Resume in August
Spinach Sow in September

Sarah's garden · Zone 9b

Garden

S
Sara T. Near you Zone 9b · 40m ago
Blueberries
Blueberries from Sara T.

First berries coloring up on the Sunshine Blue. Worth the extra work to get the soil acidic enough out here.

34 7
L
Lauren H. Near you Zone 9b · 2h ago
Cherry Tomato

First bowl of Sungolds tonight. The kids ate half before dinner.

12 3
T
Trevor L. Near you Zone 9b · 3h ago
Squash
Squash from Trevor L.

The summer squash has taken over the raised bed already. Going to be swimming in zucchini by July.

19 4
D
Dan W. Zone 9a · 5h ago
Peach

Tree two is loaded this year. Thinning the fruit early really paid off.

8 1
P
Priya S. Near you Zone 9b · 1d ago
Carrot

Pulled the spring row before the heat. Sweetest ones were the smallest.

21 5
L
Luis R. Near you Zone 9b · 2d ago
Strawberries

Runners everywhere. Potting up a dozen to share at the swap this weekend.

15 2

Demo posts. The real feed launches with the app.

An early preview. Swipe, tap the tabs, flip beginner / seasoned.

The app

Plant tracker, planting calendar, push notifications calibrated to your zone, harvest journal, community feed. Everything the web library can't do because it's not in your pocket.

The rate, locked

plant Pro is $34.99 a year at launch. Founding members lock that rate for the life of their subscription. The web library stays free either way.

Badge + beta

Backers get the founding-member badge in the app, and early access to the beta before public launch in February 2028.

See the campaign →
Ripe red apples on the branch, sunlit, ready to pick.
A note from Trevor

Why we want more people growing.

We started building plant because every gardening app we tried failed us the same way: they told us what to plant in some abstract climate, not what to do tomorrow in zone 9. We're parents and growers without a lot of evening to spare, and we wanted a knowledgeable friend who'd grown this before and could just tell us what to do. The deeper we got, the more it became about more than our own backyards. Growing a little of your own food is good for your health, gentler on your budget, and a reason to know your neighbors, and we want that within reach for everyone, not just the people who already know how. plant is that friend, calibrated to where you actually live.

Trevor Lewis, founder of plant.

Trevor Lewis
Exeter, CA · Zone 9

Growing notes, weekly.

Zone-aware seasonal nudges, what's worth planting now, and the occasional recipe from the harvest. No spam, ever.

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