When to Plant Radishes in North Dakota
North Dakota spans USDA hardiness 3b to 4b (zones 3b to 4b on this page). Plant radishes by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 3b · Zone 4a · Zone 4b
Radishes planting calendar for North Dakota, Zone 3b
Average last spring frost
May 20
Average first fall frost
September 15
spring planting
Direct sow
May 6
Projected first harvest
Jul 5
fall planting
Direct sow
Jul 21
Projected first harvest
Sep 19
spring planting
fall planting
Most radishes mature in about 24 to 60 days depending on the variety. Full zone 3 guide (both 3a and 3b) →
Radishes planting calendar for North Dakota, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
spring planting
Direct sow
May 1
Projected first harvest
Jun 30
fall planting
Direct sow
Jul 26
Projected first harvest
Sep 24
spring planting
fall planting
Most radishes mature in about 24 to 60 days depending on the variety. Full zone 4 guide (both 4a and 4b) →
Radishes planting calendar for North Dakota, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
spring planting
Direct sow
Apr 26
Projected first harvest
Jun 25
fall planting
Direct sow
Jul 31
Projected first harvest
Sep 29
spring planting
fall planting
Most radishes mature in about 24 to 60 days depending on the variety. Full zone 4 guide (both 4a and 4b) →
Not sure which half-zone you're in? 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
🌱 Grow radishes with a calendar built for your exact yard
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