When to Plant Ashwagandha in Idaho
Idaho spans USDA hardiness 4a to 7b (zones 4a to 7b on this page). Plant ashwagandha by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 4a · Zone 4b · Zone 5a · Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b
Ashwagandha planting calendar for Idaho, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Start seeds indoors
Apr 3
Transplant outdoors
May 29
Projected first harvest
Nov 25
Ashwagandha is ready to harvest in about 180 days. Full zone 4 guide (both 4a and 4b) →
Ashwagandha planting calendar for Idaho, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
Start seeds indoors
Mar 29
Transplant outdoors
May 24
Projected first harvest
Nov 20
Ashwagandha is ready to harvest in about 180 days. Full zone 4 guide (both 4a and 4b) →
Ashwagandha planting calendar for Idaho, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Start seeds indoors
Mar 24
Transplant outdoors
May 19
Projected first harvest
Nov 15
Ashwagandha is ready to harvest in about 180 days. Full zone 5 guide (both 5a and 5b) →
Ashwagandha planting calendar for Idaho, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Start seeds indoors
Mar 19
Transplant outdoors
May 14
Projected first harvest
Nov 10
Ashwagandha is ready to harvest in about 180 days. Full zone 5 guide (both 5a and 5b) →
Ashwagandha planting calendar for Idaho, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Start seeds indoors
Mar 14
Transplant outdoors
May 9
Projected first harvest
Nov 5
Ashwagandha is ready to harvest in about 180 days. Full zone 6 guide (both 6a and 6b) →
Ashwagandha planting calendar for Idaho, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Start seeds indoors
Mar 9
Transplant outdoors
May 4
Projected first harvest
Oct 31
Ashwagandha is ready to harvest in about 180 days. Full zone 6 guide (both 6a and 6b) →
Ashwagandha planting calendar for Idaho, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Start seeds indoors
Mar 4
Transplant outdoors
Apr 29
Projected first harvest
Oct 26
Ashwagandha is ready to harvest in about 180 days. Full zone 7 guide (both 7a and 7b) →
Ashwagandha planting calendar for Idaho, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Start seeds indoors
Feb 27
Transplant outdoors
Apr 24
Projected first harvest
Oct 21
Ashwagandha is ready to harvest in about 180 days. Full zone 7 guide (both 7a and 7b) →
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 ashwagandha in the HomeSown library. Tap any for its full grow guide.
Common problems with ashwagandha
What to watch for, with identification and treatment for each
🌱 Grow ashwagandha with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →