When to Plant Cauliflower in Zone 4
In USDA zone 4a, start seeds indoors around April 3, transplant or plant outdoors May 1 to July 25, and expect your first harvest around July 25. Zone 4 also has a fall planting window opening around June 14. (4a shown here — see 4a and 4b dates separately below.)
Cauliflower planting calendar for USDA Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
spring planting
Start seeds indoors
Apr 3
Transplant outdoors
May 1
Projected first harvest
Jul 25
fall planting
Start seeds indoors
May 10
Transplant outdoors
Jun 14
Projected first harvest
Sep 7
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety, needing roughly 128 frost-free days in zone 4a.
Cauliflower planting calendar for USDA Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
spring planting
Start seeds indoors
Mar 29
Transplant outdoors
Apr 26
Projected first harvest
Jul 20
fall planting
Start seeds indoors
May 15
Transplant outdoors
Jun 19
Projected first harvest
Sep 12
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety, needing roughly 138 frost-free days in zone 4b.
Not sure whether you're in 4a or 4b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
4 varieties of cauliflower in the HomeSown library. Tap any for its full grow guide.
Common problems with cauliflower
What to watch for, with identification and treatment for each
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