When to Plant Milk Thistle in Louisiana
Louisiana spans USDA hardiness 8b to 10a (zones 8b to 10a on this page). Plant milk thistle by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 8b · Zone 9a · Zone 9b · Zone 10a
Milk Thistle planting calendar for Louisiana, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Direct sow
Apr 3
Projected first harvest
Aug 31
Milk Thistle is ready to harvest in about 150 days. Full zone 8 guide (both 8a and 8b) →
Milk Thistle planting calendar for Louisiana, Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Direct sow
Mar 15
Projected first harvest
Aug 12
Milk Thistle is ready to harvest in about 150 days. Full zone 9 guide (both 9a and 9b) →
Milk Thistle planting calendar for Louisiana, Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Direct sow
Mar 1
Projected first harvest
Jul 29
Milk Thistle is ready to harvest in about 150 days. Full zone 9 guide (both 9a and 9b) →
Milk Thistle planting calendar for Louisiana, Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
Direct sow
Feb 13
Projected first harvest
Jul 13
Milk Thistle is ready to harvest in about 150 days. Full zone 10 guide (both 10a and 10b) →
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 milk thistle in the HomeSown library. Tap any for its full grow guide.
Common problems with milk thistle
What to watch for, with identification and treatment for each
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