When to Plant Cauliflower in Wisconsin
Wisconsin spans USDA hardiness 4a to 6a (zones 4a to 6a on this page). Plant cauliflower by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 4a · Zone 4b · Zone 5a · Zone 5b · Zone 6a
Cauliflower planting calendar for Wisconsin, 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. Full zone 4 guide (both 4a and 4b) →
Cauliflower planting calendar for Wisconsin, 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. Full zone 4 guide (both 4a and 4b) →
Cauliflower planting calendar for Wisconsin, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
spring planting
Start seeds indoors
Mar 24
Transplant outdoors
Apr 21
Projected first harvest
Jul 15
fall planting
Start seeds indoors
May 21
Transplant outdoors
Jun 25
Projected first harvest
Sep 18
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Cauliflower planting calendar for Wisconsin, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
spring planting
Start seeds indoors
Mar 19
Transplant outdoors
Apr 16
Projected first harvest
Jul 10
fall planting
Start seeds indoors
May 25
Transplant outdoors
Jun 29
Projected first harvest
Sep 22
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Cauliflower planting calendar for Wisconsin, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
spring planting
Start seeds indoors
Mar 14
Transplant outdoors
Apr 11
Projected first harvest
Jul 5
fall planting
Start seeds indoors
May 30
Transplant outdoors
Jul 4
Projected first harvest
Sep 27
spring planting
fall planting
Most cauliflower mature in about 70 to 200 days depending on the variety. Full zone 6 guide (both 6a and 6b) →
Not sure which half-zone you're in? 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
🌱 Grow cauliflower with a calendar built for your exact yard
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