Can You Grow Borage in Canadian Zone 5?
Quick Answer:
✅ Yes — Borage grows easily anywhere in your zone — direct sow and let it self-seed for years of free plants.
✅ Yes
Borage grows well in Canadian Zone 5
Borage grows easily anywhere in your zone — direct sow and let it self-seed for years of free plants.
📅 When to Plant in Canadian Zone 5
Direct Sow
Apr 15
Last Sow Date
Aug 16
🌾 Harvest
Jun 4 – Jun 14
Based on Canadian Zone 5's average last frost of mid-April and first frost of mid-October.
🌱 Growing Borage in Canadian Zone 5
Direct sow after last frost — hates transplanting. Self-seeds so aggressively you plant it once and it returns every year. Great companion plant for tomatoes and strawberries. Harvest flowers daily to encourage more blooms.
🪴 Container: 3+ gal pot❄️ Frost Tolerant
🗺️ Canadian Plant Hardiness Zones
Zone 5 is shown in
this colour
on the map below
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 5
- USDA Zone
- 5
- Last Frost
- mid-April
- First Frost
- mid-October
- Frost-Free Days
- 182
- Borage Zone Range
- 2a – 11b
- Days to Harvest
- 50–60 days
Frequently Asked Questions
Borage grows easily anywhere in your zone — direct sow and let it self-seed for years of free plants.
Canadian Zone 5 is in USDA Hardiness Zone 5 with approximately 182 frost-free days per year.
Borage grows in USDA Zones 2a–11b.
Borage is beginner-friendly and one of the easier crops to grow.