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Quick Answer: ✅ Yes — Florence fennel grows well here — it likes warm days and cool nights for bulb development.
✅ Yes

Florence Fennel grows well in Canadian Zone 6

Florence fennel grows well here — it likes warm days and cool nights for bulb development.

📅 When to Plant in Canadian Zone 6

Direct Sow Apr 1
Last Sow Date Aug 2
🌾 Harvest Jun 5 – Jun 30

Based on Canadian Zone 6's average last frost of early April and first frost of late October.

🌱 Growing Florence Fennel in Canadian Zone 6

Direct sow after last frost — fennel dislikes transplanting. Sow 1/4 inch deep, thin to 12 inches. Keep soil consistently moist while bulbing. Harvest when bulbs are 3 inches wide. Do NOT plant near tomatoes or peppers.

🪴 Container: 5+ gal pot

🗺️ Canadian Plant Hardiness Zones

Zone 6 is shown in this colour on the map below
Canadian Plant Hardiness Zone Map — zones 0 to 9

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 6
USDA Zone
6
Last Frost
early April
First Frost
late October
Frost-Free Days
212
Florence Fennel Zone Range
4a – 9b
Days to Harvest
65–90 days

Frequently Asked Questions

Florence fennel grows well here — it likes warm days and cool nights for bulb development.
Canadian Zone 6 is in USDA Hardiness Zone 6 with approximately 212 frost-free days per year.
Florence Fennel grows in USDA Zones 4a–9b.
Florence Fennel needs moderate care and attention to thrive.