When to Plant St. John's Wort in Texas
Texas spans USDA hardiness 6b to 10b (zones 6b to 10b on this page). Plant st. john's wort by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b · Zone 9a · Zone 9b · Zone 10a · Zone 10b
St. John's Wort planting calendar for Texas, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Start seeds indoors
Feb 23
Transplant outdoors
May 4
Projected first harvest
Sep 1
St. John's Wort is ready to harvest in about 120 days. Full zone 6 guide (both 6a and 6b) →
St. John's Wort planting calendar for Texas, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Start seeds indoors
Feb 18
Transplant outdoors
Apr 29
Projected first harvest
Aug 27
St. John's Wort is ready to harvest in about 120 days. Full zone 7 guide (both 7a and 7b) →
St. John's Wort planting calendar for Texas, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Start seeds indoors
Feb 13
Transplant outdoors
Apr 24
Projected first harvest
Aug 22
St. John's Wort is ready to harvest in about 120 days. Full zone 7 guide (both 7a and 7b) →
St. John's Wort planting calendar for Texas, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Start seeds indoors
Feb 4
Transplant outdoors
Apr 15
Projected first harvest
Aug 13
St. John's Wort is ready to harvest in about 120 days. Full zone 8 guide (both 8a and 8b) →
St. John's Wort planting calendar for Texas, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Start seeds indoors
Jan 23
Transplant outdoors
Apr 3
Projected first harvest
Aug 1
St. John's Wort is ready to harvest in about 120 days. Full zone 8 guide (both 8a and 8b) →
St. John's Wort planting calendar for Texas, Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Start seeds indoors
Jan 4
Transplant outdoors
Mar 15
Projected first harvest
Jul 13
St. John's Wort is ready to harvest in about 120 days. Full zone 9 guide (both 9a and 9b) →
St. John's Wort planting calendar for Texas, Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Start seeds indoors
Dec 21
Transplant outdoors
Mar 1
Projected first harvest
Jun 29
St. John's Wort is ready to harvest in about 120 days. Full zone 9 guide (both 9a and 9b) →
St. John's Wort planting calendar for Texas, Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
Start seeds indoors
Dec 5
Transplant outdoors
Feb 13
Projected first harvest
Jun 13
St. John's Wort is ready to harvest in about 120 days. Full zone 10 guide (both 10a and 10b) →
St. John's Wort planting calendar for Texas, Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
Start seeds indoors
Dec 5
Transplant outdoors
Feb 13
Projected first harvest
Jun 13
St. John's Wort is ready to harvest in about 120 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 st. john's wort in the HomeSown library. Tap any for its full grow guide.
Common problems with st. john's wort
What to watch for, with identification and treatment for each
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