Zone 7 · Trees & Shrubs Growing Guide

When to Plant Olive
in Zone 7

A 2,000-year track record. Incredibly drought-tolerant and long-lived -- trees can produce for centuries. Needs cold winters for flowering. Arbequina is self-fertile and the most popular home variety.

Plant window opens
Mar 29
Last chance to plant
Apr 28
Last frost
~Mar 15
Days to harvest
5–10 years
Difficulty
Medium
Plant now — Zone 7
Harvest: Oct - Dec
Harvest urgency: forgiving — Generous harvest window once ripe

Planting Calendar

In Zone 7, Olive can be planted outdoors from Mar 29 — the window closes around Apr 28.

Marginal in Zone 7. Arbequina is most cold-hardy. Protect from hard freezes below 15°F.

Your zone at a finer grain NOAA 1991–2020

Zone 7 is split into two subzones. The a/b distinction affects your exact last frost date by 1–2 weeks -- meaningful for heat-sensitive crops and fruit tree hardiness.

SubzoneLast frostFirst fallSeasonMin temp
7a Apr 7Nov 1~208 days 0 to 5°F
7b Mar 25Nov 8~229 days 5 to 10°F

plant detects your subzone from your location and adjusts planting windows accordingly.

Hardiness range

Olives (Olea europaea) need a Mediterranean climate to produce fruit properly: hot dry summers, mild winters with 200-400 chill hours, and minimal rainfall during fruit ripening in fall. Trees survive to about 15F when mature (zone 8b), but fruit buds are damaged at higher temperatures -- reliable fruit production really starts in zone 9a. In humid climates like the US Southeast, olives grow as ornamentals but fruit production is minimal due to inadequate summer heat accumulation and fungal disease pressure. California, Arizona, Texas Hill Country, and New Mexico are the practical US olive-growing regions. Most olives require cross-pollination from a second variety for fruit set, though 'self-fertile' Arbequina is a reasonable exception. Fresh olives are inedibly bitter; all olive varieties require brining or curing before eating. Trees are slow to begin bearing (year 4-8) but extraordinarily long-lived (centuries) and drought-tolerant. Pollen is heavily wind-dispersed and can cause severe allergies; reduced-pollen cultivars exist for landscape use in populated areas.

34567891011
Tree survives
Zone 8a – 11a
Fruits reliably
Zone 8b – 11a

Gold marker = Zone 7. The gap between the two bands is where the tree lives but crops are unreliable.

Chill hours required
Typical requirement
300
hours below 45°F
Range across varieties
200–400 hours across varieties

Moderate chill requirement -- needs cool winters but not freezing. Zones 8-11

Growing Journey

Here is what to expect at each stage — and what to do when you get there.

PlantingDay 0-14

Dig twice as wide as the root ball, same depth. Spread roots over a mound in the planting hole. Stake firmly. No fertili

Root EstablishmentDay 14-120

Water deeply once a week. Remove all flowers -- every flower removed in year one is energy that goes into root developme

First Season GrowthDay 60-240

Choose 3-4 main scaffold branches evenly spaced around the trunk. Remove everything else to the trunk. Train scaffold br

First DormancyYear 0-1

Winter is the time to prune. Cut back scaffold branches by a third, remove crossing or inward-facing growth. Apply a thi

What to Expect

Typical yield
Varies by variety and maturity -- most trees take 3-5 years to full production

At peak: A mature fruit tree at full production provides abundant seasonal harvests

Fruit trees are multi-year investments. Year one and two are about establishment, not harvest. The patience is worth it.

Key factorsvariety and rootstockpruning disciplinethinningpest and disease managementpollinator access
Get notified when to plant, water, and harvest your Olive — personalized for your zone.
Grown Olive before?or

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Low
Spacing
180–300 inches
Soil
Well-draining, alkaline-tolerant
First harvest
5–10 years
Soil pH
5.5–8.5
Plant tip · Zone 7
Marginal in Zone 7. Arbequina is most cold-hardy. Protect from hard freezes below 15°F.
Lifecycle
First harvest: 3–5 yrsFull production: 8–10 yrsProductive life: 500+ yrsPartially self-fertilePermanent
How to know it's ready
Green olives: firm and green, bitter but curable. Black olives: shrivelled and very dark. Both need curing before eating.

Watering Olive

How often
Every 2-3 weeks -- extremely drought tolerant
How much
Deep soak
Method
At soil level
Overwatering signs
Root rot -- most common olive killer
Underwatering signs
Leaf drop (tolerates well)

Feeding Schedule

How often
once a year
Feed type
Balanced fertilizer (light)
Key timing
early spring
NPK: 10-10-10 once in spring -- olives prefer lean soil

Mediterranean tree that prefers lean soil. One light balanced feed in spring. Over-feeding reduces fruiting and increases disease susceptibility.

Example product: Espoma Fruit-Tone (light application)

Seasonal Care

Mar
Prune
Prune in late winter/early spring. Remove suckers, water sprouts, and crossing branches. Thin canopy to allow light penetration.
Bare Root
Plant bare-root trees in late winter/early spring while dormant. Container trees can go in spring through early autumn. Stake against wind for the first 2 years.
Container friendly · Minimum 15 gallons
Olive is a classic container tree for cold-zone growers. Use a 15+ gallon container with excellent drainage. In zones below 8, bring indoors to an unheated but frost-free space for winter (olives need a cool dormancy -- don't keep in a heated room). Choose dwarf varieties like Arbequina for best container performance. Expect reduced vigor and fruit set versus in-ground trees in warm zones.

Companion Planting

Some plants help Olive thrive. Others compete or cause problems.

Grows well with
LavenderRosemaryComfrey
Keep apart from
GrassFennel

Common Problems

Something went wrong? Here is what likely happened and what to do differently next time.

Frost killed the blossom

What happened: Blossom frost is the most devastating thing that can happen to a fruit tree. Even a brief frost during blossom can eliminate the entire year's crop. Apricots and early-blooming varieties are most vulnerable because they flower before the frost risk has passed.

Next season: Watch the forecast obsessively during blossom. Cover with horticultural fleece on nights when frost is forecast -- even large trees can be partially covered. Early-blooming varieties in frost-prone spots are a long-term gamble.

Pests or disease

What happened: Brown rot, scab, and codling moth are the most common fruit tree problems. Brown rot spreads rapidly in wet summers and affects stone fruits especially. Codling moth larvae tunnel into apples and pears. Scab causes dark, corky patches on fruit and leaves.

Next season: Clear all fallen fruit immediately -- it harbours overwintering pests and disease. Prune for an open centre to improve airflow. Consider a winter wash to reduce overwintering pest populations.

Flowers appeared but no fruit set

What happened: Poor pollination is the most common reason fruit trees flower but produce no fruit. This can be caused by frost killing the blossom, insufficient pollinators, or the tree being self-sterile without a compatible pollinator partner nearby.

Next season: Check whether your variety needs a pollinator partner -- most apples, pears, and plums do. Plant a compatible variety nearby, or check whether a neighbour has one. Encourage pollinators with flowering plants around the tree.

Root problems or waterlogging

What happened: Fruit trees in waterlogged soil develop root problems that cause general poor health -- yellowing leaves, poor growth, and dieback. Young trees are especially vulnerable in their first season.

Next season: Fruit trees need excellent drainage. If the site is prone to waterlogging, plant on a slight mound or improve drainage before planting. This is not fixable after the tree is established.

Poor fruit quality or low yield

What happened: Fruit trees need full sun -- 6-8 hours minimum -- to ripen fruit properly. In shade they grow and flower but fruit is small, poorly coloured, and lacks flavour. Overly shaded canopy (from poor pruning) has the same effect.

Next season: Ensure the tree is sited in full sun and pruned to an open centre that lets light reach all fruiting wood. A few hours more sun per day makes a significant difference to fruit quality and quantity.

What went wrong

Something didn't work out? Here is what likely happened and what to do differently next season.

Frost killed the blossom

What happened: Blossom frost is the most devastating thing that can happen to a fruit tree. Even a brief frost during blossom can eliminate the entire year's crop. Apricots and early-blooming varieties are most vulnerable because they flower before the frost risk has passed.

Next season: Watch the forecast obsessively during blossom. Cover with horticultural fleece on nights when frost is forecast -- even large trees can be partially covered. Early-blooming varieties in frost-prone spots are a long-term gamble.

Pests or disease

What happened: Brown rot, scab, and codling moth are the most common fruit tree problems. Brown rot spreads rapidly in wet summers and affects stone fruits especially. Codling moth larvae tunnel into apples and pears. Scab causes dark, corky patches on fruit and leaves.

Next season: Clear all fallen fruit immediately -- it harbours overwintering pests and disease. Prune for an open centre to improve airflow. Consider a winter wash to reduce overwintering pest populations.

Flowers appeared but no fruit set

What happened: Poor pollination is the most common reason fruit trees flower but produce no fruit. This can be caused by frost killing the blossom, insufficient pollinators, or the tree being self-sterile without a compatible pollinator partner nearby.

Next season: Check whether your variety needs a pollinator partner -- most apples, pears, and plums do. Plant a compatible variety nearby, or check whether a neighbour has one. Encourage pollinators with flowering plants around the tree.

Root problems or waterlogging

What happened: Fruit trees in waterlogged soil develop root problems that cause general poor health -- yellowing leaves, poor growth, and dieback. Young trees are especially vulnerable in their first season.

Next season: Fruit trees need excellent drainage. If the site is prone to waterlogging, plant on a slight mound or improve drainage before planting. This is not fixable after the tree is established.

Poor fruit quality or low yield

What happened: Fruit trees need full sun -- 6-8 hours minimum -- to ripen fruit properly. In shade they grow and flower but fruit is small, poorly coloured, and lacks flavour. Overly shaded canopy (from poor pruning) has the same effect.

Next season: Ensure the tree is sited in full sun and pruned to an open centre that lets light reach all fruiting wood. A few hours more sun per day makes a significant difference to fruit quality and quantity.

Pests & Diseases

Know what to look for before it gets out of hand — early identification is the most important step.

What to look for
Small brown puncture (sting) on olive fruit that darkens as the larva tunnels inside. Cut fruit shows tan tunnels and sometimes a small cream-colored maggot. Fruit drops early or rots on the tree. Affected fruit ruins oil quality and cannot be cured.
Cause
Bactrocera oleae. UC ANR identifies this as the most damaging pest of California olives and the most important olive pest worldwide. Regional -- primarily a California concern in the US. Multiple generations per season.
Organic treatment
Hang yellow sticky traps baited with ammonium carbonate for monitoring. Spinosad-based GF-120 NF Naturalyte bait (OMRI-listed) applied weekly to a few branches during fruit development attracts and kills egg-laying females. Kaolin clay spray (Surround WP) deters egg-laying.
Prevention
Pick up and destroy all dropped olives -- they harbor pupae. Consider not leaving fruit on trees past January. Strip unpicked olives at season end on ornamental (non-fruiting) trees to deny the fly a breeding site. Regionally, protected or closed fruit clusters help.
What to look for
Dark brown to black domed bumps on twigs, branches, and leaves -- about 1/8 inch across with a characteristic H-shaped ridge on the back. Copious sticky honeydew coating leaves and fruit, followed by heavy sooty mold that reduces photosynthesis. Leaf drop and twig dieback.
Cause
Saissetia oleae, a soft scale listed by UC ANR as a key olive pest. Worse in humid coastal conditions and in dense canopies. Farmed by ants.
Organic treatment
Narrow-range horticultural oil timed to crawler emergence (typically late spring into summer). Prune out heavily infested branches. Control ants with sticky trunk bands.
Prevention
Prune to open the canopy -- scale populations crash in well-ventilated trees. Protect parasitic wasps (Metaphycus spp.) that provide biological control.
What to look for
Waxy white filaments on new growth tips. Distorted, curled young leaves. Flower buds malformed or dropping. Sticky honeydew and sooty mold. Most severe on flush growth in spring.
Cause
Euphyllura olivina, an invasive psyllid established in California since roughly 2007. UC ANR lists it as a regional olive pest. Multiple generations per year.
Organic treatment
Horticultural oil or insecticidal soap during the spring flush. Parasitic wasps provide partial control.
Prevention
Prune out infested tips in spring. Support natural enemies by avoiding broad-spectrum sprays.
What to look for
Pale stippling or silvery discoloration on leaves. Heavy infestations cause leaf bronzing and early leaf drop. Visible only with a hand lens.
Cause
Oxycenus maxwelli and related eriophyid mites. UC ANR lists this as an olive pest, mostly a concern on stressed trees and in hot dry weather.
Organic treatment
Sulfur dust or horticultural oil (not together -- they interact). Most established trees tolerate mite damage.
Prevention
Maintain even irrigation. Avoid drought stress, which favors mite buildup.
What to look for
Rough, woody, gall-like swellings on twigs, branches, and occasionally trunk and leaves. Knots start as small swellings and grow to 1-2 inches or more. Branches beyond heavy knots lose vigor, fail to leaf out, and die back. Fruit from infected trees may carry off-flavors.
Cause
Pseudomonas savastanoi pv. savastanoi, a bacterium. UC ANR identifies this as a primary olive disease, with incidence strongly tied to rainfall and freeze injury (openings that let the bacteria in). Spreads by water and contaminated pruning tools.
Organic treatment
Prune out knotted tissue during dry weather, cutting 6-12 inches into healthy wood. Disinfect tools between cuts with 10% bleach or 70% alcohol. Destroy (burn or bag) all prunings. No effective bactericide registered for home use.
Prevention
Only prune in dry weather. Avoid injuring bark with mowers, pruners, or picking equipment. Plant disease-free nursery stock (pathogen exclusion is the primary defense). Protect trees from freeze damage in marginal zones. Copper sprays before winter rains can reduce new infections in commercial orchards.
What to look for
Circular dark olive-green to black spots (1/10 to 1/2 inch) on upper leaf surfaces, sometimes with a yellow halo -- the 'peacock eye' or 'bird's eye' pattern. Lower-canopy leaves most affected. Heavy infection causes defoliation, weakening the tree and reducing bloom the following year.
Cause
Spilocaea oleaginea (also called Cycloconium oleaginum), a fungus. UC ANR and oliveoilsource.com both document this as a common olive disease worldwide. Infection occurs in cool wet fall and winter weather (35-80°F); inactive in hot dry summer.
Organic treatment
Copper-based fungicide applied in late October before winter rains, and again in spring if wet weather persists. Rake and destroy fallen leaves that harbor overwintering spores.
Prevention
Plant on well-drained sites with good air circulation. Avoid overhead irrigation. Prune to open the canopy. Cultivar resistance varies but no cultivar is immune.
What to look for
Sudden wilting and yellowing of leaves on one side of the tree or on individual branches. Dark vascular streaking visible when a cut is made in affected wood. Leaves may remain attached after dying (unlike frost damage, which drops leaves). Young trees often die; mature trees may decline over years.
Cause
Verticillium dahliae, a soil-borne fungus with a very wide host range (tomatoes, peppers, eggplant, cotton, many others). Persists in soil for over a decade. Particularly bad on sites previously planted to susceptible annual crops.
Organic treatment
No cure. Prune out affected branches. Severely infected young trees should be removed.
Prevention
Do not plant olives where solanaceous crops (tomatoes, peppers, eggplants) have grown recently. Plant on verticillium-tested soil in replant situations. Some rootstocks show tolerance. Avoid over-irrigation.
What to look for
Dead flower clusters that fail to emerge in spring, or blighted clusters with blackened rachises appearing in late spring. Fruit rot with silvery covering. Elliptical cankers on branches that girdle and kill twigs.
Cause
Neofusicoccum parvum, Diplodia, and related Botryosphaeriaceae fungi. Often enters through olive knot galls, pruning wounds, or freeze-damaged tissue. Compounds the damage caused by olive knot.
Organic treatment
Prune out dead branches and blighted clusters. Disinfect pruning tools between cuts. Dispose of prunings; do not compost.
Prevention
Control olive knot (which provides entry points). Prune during dry weather with clean cuts. Keep trees adequately watered but not waterlogged.

Recommended Varieties

  • Arbequina (small tree, self-fertile, prolific)
  • Koroneiki (Greek standard, cold-hardy)
  • Mission (California classic)
  • Picual (Spanish, most widely planted worldwide)
Arbequina is the best choice for most backyard growers -- self-fertile (no partner needed), compact, and produces oil and table olives.
Crop Rotation — rotate every 0 years
Perennial -- no annual rotation
Avoid planting after: N/A -- permanent planting
Good to follow: N/A -- permanent planting
Fruit trees and perennial shrubs are permanent plantings -- crop rotation does not apply. Choose the planting site carefully as it is permanent.

Variety guide

Variety choice is the most important decision for fruit trees. It determines cold hardiness, chill hours, bloom timing, and whether you need a pollination partner. Varieties marked for Zone 7 sit within the reliable fruiting range.

Arbequina
Survives
Z8a–10b
Fruits reliably
Z8b–10b
Chill hours
300
Bloom: Mid — Standard bloom window

Spanish variety. Partially self-fertile -- one of few olive varieties that fruits alone. Small brown-purple fruit, excellent for oil production. Cold-hardy. The home-garden standard olive. Earlier bearing than most varieties.

Mission
Survives
Z8b–11a
Fruits reliably
Z9a–11a
Chill hours
200
Bloom: Mid — Standard bloom window

Classic California olive, brought by Franciscan missionaries in the 1700s. Medium black fruit, dual-purpose for table olives and oil. Requires pollinator. The cultural heritage olive of California.

Manzanillo
Survives
Z8b–11a
Fruits reliably
Z9a–11a
Chill hours
200
Bloom: Mid — Standard bloom window

Spanish variety, the classic green table olive. Large oval fruit. Requires pollinator (Sevillano, Mission). Most widely-planted table olive variety globally. Lower oil content; grown specifically for eating.

Kalamata
Survives
Z8b–11a
Fruits reliably
Z9a–11a
Chill hours
200
Bloom: Mid — Standard bloom window

Greek variety producing the famous purple-black Kalamata olives. Large almond-shaped fruit. Requires pollinator. Classic Mediterranean table olive with distinctive rich flavor. Good cold tolerance.

Frantoio
Survives
Z8b–10b
Fruits reliably
Z9a–10b
Chill hours
300
Bloom: Mid — Standard bloom window

Italian oil olive, the standard for premium Tuscan olive oil. Small black fruit with very high oil content. Requires pollinator. Top choice for serious home oil production.

Annual tasks

Key recurring tasks for a healthy, productive tree. Timing shown for Zone 7.

prune Mar

Prune in late winter/early spring. Remove suckers, water sprouts, and crossing branches. Thin canopy to allow light penetration.

Storing Your Harvest

Room temp
Freshly picked olives must be cured immediately -- they are inedible raw
Fridge
Once cured: 2-3 weeks
Freezer
Freeze cured olives in brine -- quality drops somewhat but acceptable
Cure in brine (12-18 months), lye (1-2 weeks), or dry salt (6 weeks). Home-cured olives are very satisfying.

Free app · Kickstarter October 2027 · iOS February 2028

Know exactly when to plant, prune, and harvest Olive

plant uses your ZIP code and real frost data to tell you the right day — not just the right month. Get notified when your planting window opens, when to succession sow, and when to cut back for next season.

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Weather watch

plant monitors these conditions and sends an alert the moment they are forecast for your location.

Frost Warning
Frost during blossom -- critical protection needed
Blossom frost is the most damaging weather event for fruit trees. Even a brief frost at -1°C can destroy the entire year's crop. Cover with fleece tonight.
HIGH priority
Drought
Drought stress during fruit development
Water deeply around the drip line of the tree. Drought during fruit development causes premature drop, bitter flavour, and poor size. A deep weekly watering is better than light daily watering.
MEDIUM priority
High Humidity
High humidity -- fungal disease risk for fruit
Brown rot, powdery mildew, and scab all thrive in humid conditions. Ensure good airflow through the canopy -- pruning for an open centre pays dividends here. Remove any infected fruit immediately.
MEDIUM priority

Moon phase planting

Traditional growers have used lunar cycles to time planting and harvest for centuries. The moon affects moisture levels in soil and sap flow in plants.

Above-ground crop
Waxing moon -- new moon to full moon
Plant and harvest on a waxing moon. Energy draws upward into leaves, stems, and fruit. Germination is strongest in the days after the new moon.
Lunar phase guide
New moon → Full moon
Waxing phase
Best for planting above-ground crops. Sap rises, germination is stronger. Good for transplanting.
Full moon → New moon
Waning phase
Best for harvesting, pruning, and root crops. Energy draws downward. Good for dividing perennials.
Full moon
Peak moisture
Avoid planting -- seeds may rot in high-moisture conditions. Good for harvesting crops to eat fresh.
New moon
Rest period
Avoid planting or transplanting. Best for soil preparation, weeding, and composting.

Common questions

In Zone 7, direct sow olive outdoors Mar 29 - Apr 28 after your last frost of approximately Mar 15. Marginal in Zone 7. Arbequina is most cold-hardy. Protect from hard freezes below 15°F.
Zone 7 has an average last spring frost around Mar 15 and a first fall frost around Nov 15. These vary by location — the plant app uses your ZIP code with NOAA data for precision.
Good companions for olive include Lavender, Rosemary, Comfrey. Avoid planting near Grass, Fennel.
Olive typically takes 5–10 years to harvest in Zone 7. Expected harvest window: Oct - Dec.

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Olive in other zones
Trees & Shrubs