Zone-Specific Guide
Grow Collard Raab in Zone 12a
Your complete guide to growing collard raab in USDA Hardiness Zone 12a — planting windows, care tips, and harvest timing.
Winter
🌡️ Zone 12a
🏖️ Shade Cloth
Days to Harvest
40–55
Spacing
4–6"
Method
Direct sow
Season
Winter
When to Plant Collard Raab in Zone 12a
Transplant Outdoors
Nov – Jan
Direct Sow
Nov – Jan
How to Grow Collard Raab in Zone 12a
📋 Key Timing Note
Very marginal for most brassicas. Only try fast varieties in the coolest weeks.
Direct sow seeds between Nov – Jan. Space plants 4–6" apart. Expect to harvest in approximately 40–55 days.
🏖️ Shade Cloth Recommended
In Zone 12a, use 30-50% shade cloth during the hottest months to protect collard raab from heat stress.
Common Pests in Zone 12a
Watch for these pests when growing collard raab in your area.
Frequently Asked Questions
When should I plant Collard Raab in Zone 12a?
Direct sow seeds Nov – Jan.
How far apart should I plant Collard Raab in Zone 12a?
Space collard raab plants 4–6" apart in Zone 12a. This gives them adequate room for airflow and root development.
What pests affect Collard Raab in Zone 12a?
Common pests for collard raab in Zone 12a 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 12a?
In Zone 12a, expect collard raab to be ready in approximately 40–55 days from planting. Very marginal for most brassicas. Only try fast varieties in the coolest weeks.