Can You Grow Brussels Sprouts in Zone 9b?
Quick Answer:
❌ No — Brussels sprouts need 90-180 days which is too long for very short-season zones.
❌ No
Brussels Sprouts won't survive Zone 9b winters outdoors
Brussels sprouts need 90-180 days which is too long for very short-season zones.
🌱 What Does Grow in Zone 9b?
These alternatives thrive in your conditions.
🗺️ USDA Plant Hardiness Zones
Zone 9 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 9b
- USDA Zone
- 9b
- Last Frost
- mid-January
- First Frost
- late December
- Frost-Free Days
- 348
- Brussels Sprouts Zone Range
- 3a – 9a
- Days to Harvest
- 90–180 days
Frequently Asked Questions
Brussels sprouts need 90-180 days which is too long for very short-season zones.
Zone 9b is in USDA Hardiness Zone 9b with approximately 348 frost-free days per year.
Brussels Sprouts grows in USDA Zones 3a–9a.
Brussels Sprouts is a challenging crop best suited to experienced growers.