When to Plant Collard Greens in Rhode Island
Rhode Island spans USDA hardiness 6b to 7b (zones 6b to 7b 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 6b · Zone 7a · Zone 7b
Collard Greens planting calendar for Rhode Island, 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 Rhode Island, 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 Rhode Island, 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) →
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
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