Can You Grow Florence Fennel in Zone 6a?
Florence Fennel grows well in Zone 6a
Florence fennel grows well here — it likes warm days and cool nights for bulb development.
📅 When to Plant in Zone 6a
Based on Zone 6a's average last frost of early April and first frost of late October — frost can arrive earlier or later in any given year, so check your local forecast before you transplant.
🌱 Growing Florence Fennel in Zone 6a
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.
🗺️ USDA Plant Hardiness Zones
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 6a
- USDA Zone
- 6a
- Last Frost
- early April
- First Frost
- late October
- Frost-Free Days
- 213
- Florence Fennel Zone Range
- 4a – 9b
- Days to Harvest
- 65–90 days