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Can You Grow Broccoli in Idaho?
US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b
Broccoli grows well here as a spring or fall crop — time planting to avoid peak summer heat.
Plant zones
Idaho last frost
Idaho first frost
Days to harvest
When to plant Broccolis in Idaho
Start indoors
Transplant
Harvest
Dates are approximate, based on Idaho's average frost dates. Your exact yard may vary by microclimate.
About Broccoli
Broccoli is a cool-season crop that produces best in spring and fall when temperatures are moderate.
Start indoors 6-8 weeks before last frost for spring planting or direct sow in midsummer for fall. Harvest the main head before it flowers — side shoots continue producing after.
Gardening in Idaho
Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.
Frequently asked questions
Can you grow Broccoli in Idaho?
Broccoli grows well here as a spring or fall crop — time planting to avoid peak summer heat.
What zone is Idaho?
Idaho spans USDA Zone 6b (3b, 4a, 4b, 5a, 5b, 6a, 6b).
When do you plant Broccolis in Idaho?
Plant Broccolis around mid-March (start indoors Jan 31), harvest May 14 – Jun 3.