Can You Grow Borage in Canadian Zone 1?
Quick Answer:
⚠️ Maybe — Direct sow in spring and let it self-seed for next year.
⚠️ Maybe
Borage is marginal in Canadian Zone 1 — possible with effort
Direct sow in spring and let it self-seed for next year.
How to make it work
- Use a 3+ gallon container that can be moved indoors before frost
- Bring inside before mid-August
🌱 Growing Borage in Canadian Zone 1
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 1 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 1
- USDA Zone
- 1
- Last Frost
- mid-June
- First Frost
- mid-August
- Frost-Free Days
- 61
- Borage Zone Range
- 2a – 11b
- Days to Harvest
- 50–60 days
Frequently Asked Questions
Direct sow in spring and let it self-seed for next year.
Canadian Zone 1 is in USDA Hardiness Zone 1 with approximately 61 frost-free days per year.
Borage grows in USDA Zones 2a–11b.
Borage is beginner-friendly and one of the easier crops to grow.