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Can You Grow Cauliflower in Delaware?
US · USDA Zone 7a · zones 6b, 7a
Cauliflower grows well here if you time it for your cool season — fall crops are often more reliable than spring.
Plant zones
Delaware last frost
Delaware first frost
Days to harvest
When to plant Cauliflowers in Delaware
Start indoors
Transplant
Harvest
Dates are approximate, based on Delaware's average frost dates. Your exact yard may vary by microclimate.
About Cauliflower
Cauliflower is one of the most rewarding cool-season brassicas — and one of the trickiest. It forms a dense white head that needs steady cool weather and consistent moisture.
Start indoors 6 weeks before last frost; transplant 2-3 weeks before last frost. Blanch heads by tying leaves over them once they're 2-3 inches across. Harvest before curds loosen.
Gardening in Delaware
Delaware has a humid subtropical climate moderated by the Atlantic. Mild winters and warm summers support a long growing season for mid-Atlantic vegetables.
Frequently asked questions
Can you grow Cauliflower in Delaware?
Cauliflower grows well here if you time it for your cool season — fall crops are often more reliable than spring.
What zone is Delaware?
Delaware spans USDA Zone 7a (6b, 7a).
When do you plant Cauliflowers in Delaware?
Plant Cauliflowers around early March (start indoors Jan 24), harvest May 6 – Jun 15.