Can You Grow Microgreens in Zone 1b?
Quick Answer:
✅ Yes — Microgreens grow indoors here regardless of outdoor conditions — they are a year-round indoor crop.
✅ Yes
Microgreens grows well in Zone 1b
Microgreens grow indoors here regardless of outdoor conditions — they are a year-round indoor crop.
📅 When to Plant in Zone 1b
Direct Sow
Jun 15
Last Sow Date
Jul 11
🌾 Harvest
Jun 22 – Jul 6
Based on Zone 1b's average last frost of mid-June and first frost of early August.
🌱 Growing Microgreens in Zone 1b
Sow seeds densely in a shallow tray with seed-starting mix. Keep moist and bright or under a grow light. Harvest with scissors just above soil level when first true leaves appear.
🏠 Indoor Viable💧 Hydroponic OK
🗺️ USDA Plant Hardiness Zones
Zone 1 is shown in
this colour
on the map below
2023 USDA Plant Hardiness Zone Map — public domain. USDA Agricultural Research Service
USDA zones run 1a–13b (26 half-zones). Each full zone above covers both the a and b half-zones. Browse all US zones →
Technical climate details for Zone 1b
- USDA Zone
- 1b
- Last Frost
- mid-June
- First Frost
- early August
- Frost-Free Days
- 47
- Microgreens Zone Range
- 1a – 11b
- Days to Harvest
- 7–21 days
Frequently Asked Questions
Microgreens grow indoors here regardless of outdoor conditions — they are a year-round indoor crop.
Zone 1b is in USDA Hardiness Zone 1b with approximately 47 frost-free days per year.
Microgreens grows in USDA Zones 1a–11b.
Microgreens is beginner-friendly and one of the easier crops to grow.