When to Plant Choy Sum in Oklahoma
Oklahoma spans USDA hardiness 6b to 8a (zones 6b to 8a on this page). Plant choy sum 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 · Zone 8a
Choy Sum planting calendar for Oklahoma, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
spring planting
Direct sow
Apr 6
Projected first harvest
May 21
fall planting
Direct sow
Aug 20
Projected first harvest
Oct 4
spring planting
fall planting
Choy Sum is ready to harvest in about 45 days. Full zone 6 guide (both 6a and 6b) →
Choy Sum planting calendar for Oklahoma, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
spring planting
Direct sow
Apr 1
Projected first harvest
May 16
fall planting
Direct sow
Aug 25
Projected first harvest
Oct 9
spring planting
fall planting
Choy Sum is ready to harvest in about 45 days. Full zone 7 guide (both 7a and 7b) →
Choy Sum planting calendar for Oklahoma, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
spring planting
Direct sow
Mar 27
Projected first harvest
May 11
fall planting
Direct sow
Sep 4
Projected first harvest
Oct 19
spring planting
fall planting
Choy Sum is ready to harvest in about 45 days. Full zone 7 guide (both 7a and 7b) →
Choy Sum planting calendar for Oklahoma, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
spring planting
Direct sow
Mar 18
Projected first harvest
May 2
fall planting
Direct sow
Sep 15
Projected first harvest
Oct 30
spring planting
fall planting
Choy Sum is ready to harvest in about 45 days. 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
1 variety of choy sum in the HomeSown library. Tap any for its full grow guide.
Common problems with choy sum
What to watch for, with identification and treatment for each
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