When to Plant Choy Sum in Zone 5
In USDA zone 5, plant outdoors April 21 to June 5, and expect your first harvest around June 5. Zone 5 also has a fall planting window opening around August 6.
Choy Sum planting calendar for USDA Zone 5
spring planting
Direct sow
Apr 21
Projected first harvest
Jun 5
fall planting
Direct sow
Aug 6
Projected first harvest
Sep 20
spring planting
fall planting
Choy Sum is ready to harvest in about 45 days. Dates use USDA zone 5a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 5 means for choy sum
Average last spring frost
May 5
Average first fall frost
October 1
Those two dates are what set the schedule above. Zone 5 gives you roughly 149 frost-free days, and choy sum need about 45 days to mature.
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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