Zone 7 · Microgreens Growing Guide

When to Plant Microgreens Mix
in Zone 7

The fastest crop to harvest — full of nutrition and flavour in 7–14 days. Grow on a windowsill year-round. Sunflower, radish, pea, and broccoli are best-performing varieties.

Plant window opens
Indoors year
Last chance to plant
—
Last frost
~Mar 15
Days to harvest
7–14 days
Difficulty
Easy
Ready to harvest — Zone 7
Harvest: Year-round

Planting Calendar

In Zone 7, Microgreens Mix can be planted outdoors from Indoors year.

Grow indoors on a sunny windowsill or under grow lights year-round.

Get notified when to plant, water, and harvest your Microgreens Mix — personalised for your zone.
What Zone 7 growers say about Microgreens Mix
plant team · Zone 7
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Care Guide

Sunlight
Full sun to partial shade · 3–8 hrs/day
Watering
Regular
Spacing
See notes
Soil
Seed-starting mix or coco coir
Days to maturity
7–14 days
Soil pH
6.0–7.0
Plant tip · Zone 7
Grow indoors on a sunny windowsill or under grow lights year-round.
How to know it's ready
Harvest when first true leaves appear (cotyledons fully open, first true leaf just emerging) — typically 7–14 days from seeding depending on variety. Cut at soil level with scissors. Don't wait until leggy.

Watering Microgreens Mix

How often
Mist twice daily during germination, once daily after
How much
Keep growing medium moist but not waterlogged
Method
Bottom watering preferred — prevents damping off and mold
Overwatering signs
Grey mold, damping off, foul smell
Underwatering signs
Slow germination, dry crispy sprouts

Feeding Schedule

How often
none needed
Feed type
none
Key timing
n/a

Microgreens are harvested within 2 weeks of germination — no fertilizer needed. Good seed-starting mix is sufficient.

Succession Planting

Sow every 1 weeks

Sow a new tray every 1–2 weeks year-round indoors. Microgreens are harvested once — cut the whole tray at the soil line when the first true leaves appear. This is pure succession growing: sow, harvest in 7–14 days, start the next tray. Keep 2–3 trays at different stages so you're never waiting. Used potting mix can go straight into the compost or outdoor beds.

Direct
Sow seeds densely on damp growing medium (coco coir, hemp mat, or potting mix). No soil preparation needed — use trays specifically for microgreens.
Container friendly
Microgreens are always grown in shallow trays indoors — a 10×20 inch propagation tray is standard. No minimum gallon requirement.

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 flies around growing trays. Larvae in growing medium.
Cause
Bradysia species.
Organic treatment
Yellow sticky traps. Let medium dry between waterings.
Prevention
Good airflow. Avoid overwatering.
What to look for
Seedlings collapse at soil level shortly after germination. Stems appear pinched.
Cause
Various Pythium and Fusarium fungi in overly wet conditions.
Organic treatment
Remove affected trays. Improve air circulation.
Prevention
Use sterile growing medium. Do not overwater. Good airflow.

Recommended Varieties

  • Sunflower (nutty, meaty)
  • Radish (spicy, fast)
  • Pea shoots (sweet, tender)
  • Brassica blend (mild, nutritious)
  • Buckwheat (lemon-like)
Sunflower microgreens are the most satisfying for beginners — large seeds germinate reliably and the flavour is excellent.
Crop Rotation — rotate every 0 years
Indoor crop — rotation not applicable
Avoid planting after: N/A
Good to follow: N/A
Indoor tray crop — no rotation needed.

Storing Your Harvest

Room temp
1–2 days after harvest
Fridge
5–7 days in sealed container lined with paper towel — keep dry
Freezer
Not suitable
Harvest and refrigerate immediately. Do not wash until ready to eat. Paper towel absorbs condensation.

Free app · Kickstarter October 2027 · iOS February 2028

Know exactly when to plant, prune, and harvest Microgreens Mix

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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Common questions

In Zone 7, direct sow microgreens mix outdoors Indoors year-round after your last frost of approximately Mar 15. Grow indoors on a sunny windowsill or under grow lights year-round.
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.
See companion planting section above.
Microgreens Mix typically takes 7–14 days to harvest in Zone 7. Expected harvest window: Year-round.

These guides get better when growers share what they know. If something's off or you've learned something worth passing on, add it here — accepted tips earn you a Founding Grower badge when plant launches.

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