When to Plant African Blue Basil in Iowa
Iowa spans USDA hardiness 4b to 6a (zones 4b to 6a on this page). Plant african blue basil by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 4b · Zone 5a · Zone 5b · Zone 6a
African Blue Basil planting calendar for Iowa, 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
Jul 23
African Blue Basil is ready to harvest in about 60 days. Full zone 4 guide (both 4a and 4b) →
African Blue Basil planting calendar for Iowa, 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
Jul 18
African Blue Basil is ready to harvest in about 60 days. Full zone 5 guide (both 5a and 5b) →
African Blue Basil planting calendar for Iowa, 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
Jul 13
African Blue Basil is ready to harvest in about 60 days. Full zone 5 guide (both 5a and 5b) →
African Blue Basil planting calendar for Iowa, 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
Jul 8
African Blue Basil is ready to harvest in about 60 days. Full zone 6 guide (both 6a and 6b) →
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 african blue basil in the HomeSown library. Tap any for its full grow guide.
Common problems with african blue basil
What to watch for, with identification and treatment for each
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