Can You Grow Cilantro in Canadian Zone 3?
Cilantro grows well in Canadian Zone 3
Cilantro grows easily here as a cool-season herb — sow every few weeks for continuous harvest.
📅 When to Plant in Canadian Zone 3
Based on Canadian Zone 3's average last frost of mid-May and first frost of late September — frost can arrive earlier or later in any given year, so check your local forecast before you transplant.
🌱 Growing Cilantro in Canadian Zone 3
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.
🗺️ Canadian Plant Hardiness Zones
Canadian Plant Hardiness Zone Map (2014) — Agriculture & Agri-Food Canada / Canadian Forest Service
Canadian zones run 0–9 (coldest to warmest) — a separate system from USDA zones. Browse all Canadian zones →
Technical climate details for Canadian Zone 3
- USDA Zone
- 3
- Last Frost
- mid-May
- First Frost
- late September
- Frost-Free Days
- 127
- Cilantro Zone Range
- 3a – 9a
- Days to Harvest
- 21–45 days