Can You Grow Cilantro in Zone 3b?
Quick Answer:
✅ Yes — Cilantro grows easily here as a cool-season herb — sow every few weeks for continuous harvest.
✅ Yes
Cilantro grows well in Zone 3b
Cilantro grows easily here as a cool-season herb — sow every few weeks for continuous harvest.
📅 When to Plant in Zone 3b
Direct Sow
May 1
Last Sow Date
Aug 17
🌾 Harvest
May 22 – Jun 15
Based on Zone 3b's average last frost of early May and first frost of early October.
🌱 Growing Cilantro in Zone 3b
Direct sow every 3 weeks for continuous harvest. Bolts in heat — plant in shade in summer or focus on cool seasons. Harvest before it bolts. Let some bolt to collect coriander seeds.
🪴 Container: 2+ gal pot🏠 Indoor Viable💧 Hydroponic OK❄️ Frost Tolerant
🗺️ USDA Plant Hardiness Zones
Zone 3 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 3b
- USDA Zone
- 3b
- Last Frost
- early May
- First Frost
- early October
- Frost-Free Days
- 153
- Cilantro Zone Range
- 3a – 9a
- Days to Harvest
- 21–45 days
Frequently Asked Questions
Cilantro grows easily here as a cool-season herb — sow every few weeks for continuous harvest.
Zone 3b is in USDA Hardiness Zone 3b with approximately 153 frost-free days per year.
Cilantro grows in USDA Zones 3a–9a.
Cilantro is beginner-friendly and one of the easier crops to grow.