Zone-Specific Guide
Grow Collard Raab in Zone 11a
Your complete guide to growing collard raab in USDA Hardiness Zone 11a — planting windows, care tips, and harvest timing.
Winter
🌡️ Zone 11a
🏖️ Shade Cloth
Days to Harvest
40–55
Spacing
4–6"
Method
Direct sow
Season
Winter
When to Plant Collard Raab in Zone 11a
Start Indoors
Sept – Oct
Transplant Outdoors
Oct – Dec
Direct Sow
Oct – Feb
How to Grow Collard Raab in Zone 11a
📋 Key Timing Note
Narrower window than zone 10. Only viable in the coolest months. Heat kills brassicas fast.
Direct sow seeds between Oct – Feb. Space plants 4–6" apart. Expect to harvest in approximately 40–55 days.
🏖️ Shade Cloth Recommended
In Zone 11a, use 30-50% shade cloth during the hottest months to protect collard raab from heat stress.
Common Pests in Zone 11a
Watch for these pests when growing collard raab in your area.
Frequently Asked Questions
When should I plant Collard Raab in Zone 11a?
Start seeds indoors Sept – Oct. Transplant outdoors Oct – Dec.
How far apart should I plant Collard Raab in Zone 11a?
Space collard raab plants 4–6" apart in Zone 11a. This gives them adequate room for airflow and root development.
What pests affect Collard Raab in Zone 11a?
Common pests for collard raab in Zone 11a include flea beetles, aphids, cabbage worms. Use companion planting and row covers as first-line defense.
How long until Collard Raab is ready to harvest in Zone 11a?
In Zone 11a, expect collard raab to be ready in approximately 40–55 days from planting. Narrower window than zone 10. Only viable in the coolest months. Heat kills brassicas fast.