When to Plant Radishes in Zone 8
In USDA zone 8a, plant outdoors March 18 to May 17, and expect your first harvest around May 17. Zone 8 also has a fall planting window opening around September 15. (8a shown here — see 8a and 8b dates separately below.)
Radishes planting calendar for USDA Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
spring planting
Direct sow
Mar 18
Projected first harvest
May 17
fall planting
Direct sow
Sep 15
Projected first harvest
Nov 14
spring planting
fall planting
Most radishes mature in about 24 to 60 days depending on the variety, needing roughly 223 frost-free days in zone 8a.
Radishes planting calendar for USDA Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
spring planting
Direct sow
Mar 6
Projected first harvest
May 5
fall planting
Direct sow
Sep 25
Projected first harvest
Nov 24
spring planting
fall planting
Most radishes mature in about 24 to 60 days depending on the variety, needing roughly 245 frost-free days in zone 8b.
Not sure whether you're in 8a or 8b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
6 varieties of radishes in the HomeSown library. Tap any for its full grow guide.
Common problems with radishes
What to watch for, with identification and treatment for each
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