When to Plant Sunchoke in Alaska
Alaska spans USDA hardiness 1a to 8b (zones 1a to 8b 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 1a · Zone 1b · Zone 2a · Zone 2b · Zone 3a · Zone 3b · Zone 4a · Zone 4b · Zone 5a · Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b
Sunchoke planting calendar for Alaska, Zone 1a
Average last spring frost
May 24
Average first fall frost
August 25
Direct sow
Apr 26
Projected first harvest
Aug 24
Sunchoke is ready to harvest in about 120 days.
Sunchoke planting calendar for Alaska, Zone 1b
Average last spring frost
May 29
Average first fall frost
August 28
Direct sow
May 1
Projected first harvest
Aug 29
Sunchoke is ready to harvest in about 120 days.
Sunchoke planting calendar for Alaska, Zone 2a
Average last spring frost
May 24
Average first fall frost
September 5
Direct sow
Apr 26
Projected first harvest
Aug 24
Sunchoke is ready to harvest in about 120 days.
Sunchoke planting calendar for Alaska, Zone 2b
Average last spring frost
May 30
Average first fall frost
September 6
Direct sow
May 2
Projected first harvest
Aug 30
Sunchoke is ready to harvest in about 120 days.
Sunchoke planting calendar for Alaska, Zone 3a
Average last spring frost
May 30
Average first fall frost
September 10
Direct sow
May 2
Projected first harvest
Aug 30
Sunchoke is ready to harvest in about 120 days. Full zone 3 guide (both 3a and 3b) →
Sunchoke planting calendar for Alaska, 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 Alaska, 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 Alaska, 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) →
Sunchoke planting calendar for Alaska, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Direct sow
Apr 7
Projected first harvest
Aug 5
Sunchoke is ready to harvest in about 120 days. Full zone 5 guide (both 5a and 5b) →
Sunchoke planting calendar for Alaska, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Direct sow
Apr 2
Projected first harvest
Jul 31
Sunchoke is ready to harvest in about 120 days. Full zone 5 guide (both 5a and 5b) →
Sunchoke planting calendar for Alaska, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Direct sow
Mar 28
Projected first harvest
Jul 26
Sunchoke is ready to harvest in about 120 days. Full zone 6 guide (both 6a and 6b) →
Sunchoke planting calendar for Alaska, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Direct sow
Mar 23
Projected first harvest
Jul 21
Sunchoke is ready to harvest in about 120 days. Full zone 6 guide (both 6a and 6b) →
Sunchoke planting calendar for Alaska, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Direct sow
Mar 18
Projected first harvest
Jul 16
Sunchoke is ready to harvest in about 120 days. Full zone 7 guide (both 7a and 7b) →
Sunchoke planting calendar for Alaska, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Direct sow
Mar 13
Projected first harvest
Jul 11
Sunchoke is ready to harvest in about 120 days. Full zone 7 guide (both 7a and 7b) →
Sunchoke planting calendar for Alaska, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Direct sow
Mar 4
Projected first harvest
Jul 2
Sunchoke is ready to harvest in about 120 days. Full zone 8 guide (both 8a and 8b) →
Sunchoke planting calendar for Alaska, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Direct sow
Feb 20
Projected first harvest
Jun 20
Sunchoke is ready to harvest in about 120 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 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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