When to plant Rosemary
Set out a transplant after the last frost in full sun and sharp drainage. Tender, shelter or pot it up over cold winters.
When to plant Rosemary by zone
| Zone | Start seeds indoors | Sow or transplant | Harvest |
|---|---|---|---|
| Zone 3 | not needed | May 22 | September 19 |
| Zone 4 | not needed | May 17 | September 14 |
| Zone 5 | not needed | May 7 | September 4 |
| Zone 6 | not needed | April 28 | August 26 |
| Zone 7 | not needed | April 17 | August 15 |
| Zone 8 | not needed | April 4 | August 2 |
| Zone 9 | not needed | March 8 | July 6 |
| Zone 10 | not needed | February 7 | June 7 |
| Zone 11 | not needed | January 8 | May 8 |
These dates use typical frost dates for each zone. Dibble tunes them to your exact ZIP and lets you adjust frost dates for your own yard.
Companion plants
Good neighbors for Rosemary:
Family and rotation
Rosemary is in the mints family. Aromatic herbs, interplant freely; few rotation concerns. Learn about crop rotation.
Related crops
Basil
When to plantMint
When to plantThyme
When to plantOregano
When to plantSage
When to plantLavender
When to plantQuestions
When should I plant rosemary?
It depends on your zone. Rosemary is a tender crop, so the timing follows your last spring frost. Look up your zone in the table below for exact start, sow, and harvest dates, or open Dibble and enter your ZIP to get your own calendar.
How long does rosemary take to grow?
About 120 days from transplant to the first harvest, with a picking window of roughly 200 days after that.
What grows well with rosemary?
Good companions include Cabbage, Bean (bush), Carrot.
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.