When to Plant Sunchoke in North Dakota
North Dakota spans USDA hardiness 3b to 4b (zones 3b to 4b on this page). Plant sunchoke 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
Sunchoke planting calendar for North Dakota, Zone 3b
Average last spring frost
May 20
Average first fall frost
September 15
Direct sow
Apr 22
Projected first harvest
Aug 20
Sunchoke is ready to harvest in about 120 days. Full zone 3 guide (both 3a and 3b) →
Sunchoke planting calendar for North Dakota, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Direct sow
Apr 17
Projected first harvest
Aug 15
Sunchoke is ready to harvest in about 120 days. Full zone 4 guide (both 4a and 4b) →
Sunchoke planting calendar for North Dakota, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
Direct sow
Apr 12
Projected first harvest
Aug 10
Sunchoke is ready to harvest in about 120 days. 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
1 variety of sunchoke in the HomeSown library. Tap any for its full grow guide.
Common problems with sunchoke
What to watch for, with identification and treatment for each
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