Growing Broccoli in Zone 10A

Broccoli is a cool-season brassica that produces both a main head and smaller side shoots.

Zone 10A has a very long growing season with mild winters. Many crops can be grown nearly year-round with successive plantings.

Top Growing Tips

• Start indoors 6-8 weeks before last frost for spring crop
• Harvest main head before flowers open (when buds are tight)
• After main head is cut, side shoots keep producing for weeks
• Floating row covers protect against cabbage worms
• Fall plantings often produce larger heads than spring

Companion Planting

Good companions: onions, celery, potatoes, dill, chamomile

Avoid planting near: tomatoes, peppers, strawberries

Harvest Timeline

55-80 days from transplant

About Zone 10A

USDA Hardiness Zone 10A has an average last spring frost around Feb 1 and first fall frost around Dec 20. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.