Can You Grow Florence Fennel in Zone 1b?
Quick Answer:
❌ No — Fennel needs a moderate growing season — extreme cold or heat both cause problems.
❌ No
Florence Fennel won't survive Zone 1b winters outdoors
Fennel needs a moderate growing season — extreme cold or heat both cause problems.
🌱 What Does Grow in Zone 1b?
These alternatives thrive in your conditions.
🗺️ USDA Plant Hardiness Zones
Zone 1 is shown in
this colour
on the map below
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 1b
- USDA Zone
- 1b
- Last Frost
- mid-June
- First Frost
- early August
- Frost-Free Days
- 47
- Florence Fennel Zone Range
- 4a – 9b
- Days to Harvest
- 65–90 days
Frequently Asked Questions
Fennel needs a moderate growing season — extreme cold or heat both cause problems.
Zone 1b is in USDA Hardiness Zone 1b with approximately 47 frost-free days per year.
Florence Fennel grows in USDA Zones 4a–9b.
Florence Fennel needs moderate care and attention to thrive.