When to Plant Collard Greens in Utah
Utah spans USDA hardiness 4a to 8b (zones 4a to 8b on this page). Plant collard greens 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 5a · Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b
Collard Greens planting calendar for Utah, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
spring planting
Start seeds indoors
Mar 20
Transplant outdoors
May 1
Projected first harvest
Jul 15
fall planting
Start seeds indoors
Jun 7
Transplant outdoors
Jul 12
Projected first harvest
Sep 25
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 4 guide (both 4a and 4b) →
Collard Greens planting calendar for Utah, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
spring planting
Start seeds indoors
Mar 10
Transplant outdoors
Apr 21
Projected first harvest
Jul 5
fall planting
Start seeds indoors
Jun 18
Transplant outdoors
Jul 23
Projected first harvest
Oct 6
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Collard Greens planting calendar for Utah, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
spring planting
Start seeds indoors
Mar 5
Transplant outdoors
Apr 16
Projected first harvest
Jun 30
fall planting
Start seeds indoors
Jun 22
Transplant outdoors
Jul 27
Projected first harvest
Oct 10
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Collard Greens planting calendar for Utah, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
spring planting
Start seeds indoors
Feb 28
Transplant outdoors
Apr 11
Projected first harvest
Jun 25
fall planting
Start seeds indoors
Jun 27
Transplant outdoors
Aug 1
Projected first harvest
Oct 15
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 6 guide (both 6a and 6b) →
Collard Greens planting calendar for Utah, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
spring planting
Start seeds indoors
Feb 23
Transplant outdoors
Apr 6
Projected first harvest
Jun 20
fall planting
Start seeds indoors
Jul 2
Transplant outdoors
Aug 6
Projected first harvest
Oct 20
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 6 guide (both 6a and 6b) →
Collard Greens planting calendar for Utah, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
spring planting
Start seeds indoors
Feb 18
Transplant outdoors
Apr 1
Projected first harvest
Jun 15
fall planting
Start seeds indoors
Jul 7
Transplant outdoors
Aug 11
Projected first harvest
Oct 25
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 7 guide (both 7a and 7b) →
Collard Greens planting calendar for Utah, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
spring planting
Start seeds indoors
Feb 13
Transplant outdoors
Mar 27
Projected first harvest
Jun 10
fall planting
Start seeds indoors
Jul 17
Transplant outdoors
Aug 21
Projected first harvest
Nov 4
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 7 guide (both 7a and 7b) →
Collard Greens planting calendar for Utah, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
spring planting
Start seeds indoors
Feb 4
Transplant outdoors
Mar 18
Projected first harvest
Jun 1
fall planting
Start seeds indoors
Jul 28
Transplant outdoors
Sep 1
Projected first harvest
Nov 15
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 8 guide (both 8a and 8b) →
Collard Greens planting calendar for Utah, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
spring planting
Start seeds indoors
Jan 23
Transplant outdoors
Mar 6
Projected first harvest
May 20
fall planting
Start seeds indoors
Aug 7
Transplant outdoors
Sep 11
Projected first harvest
Nov 25
spring planting
fall planting
Most collard greens mature in about 60 to 75 days depending on the variety. Full zone 8 guide (both 8a and 8b) →
Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
2 varieties of collard greens in the HomeSown library. Tap any for its full grow guide.
Common problems with collard greens
What to watch for, with identification and treatment for each
🌱 Grow collard greens with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →