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Can You Grow Cauliflower in New Brunswick?
Canada · Canadian Zone 5 · zones 4, 5, 6
Cauliflower grows well here if you time it for your cool season — fall crops are often more reliable than spring.
Plant zones
New Brunswick last frost
New Brunswick first frost
Days to harvest
When to plant Cauliflowers in New Brunswick
Start indoors
Transplant
Harvest
Dates are approximate, based on New Brunswick'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 New Brunswick
New Brunswick has a maritime continental climate. The Saint John River Valley is Zone 5b-6a. Four distinct seasons with a productive 5-6 month growing season. Known for potatoes, blueberries, and fiddleheads.
Frequently asked questions
Can you grow Cauliflower in New Brunswick?
Cauliflower grows well here if you time it for your cool season — fall crops are often more reliable than spring.
What zone is New Brunswick?
New Brunswick spans Canadian Zone 5 (4, 5, 6).
When do you plant Cauliflowers in New Brunswick?
Plant Cauliflowers around mid-April (start indoors Mar 3), harvest Jun 14 – Jul 24.