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When to plant Basil in Zone 9a

In Zone 9a, Basil: start seeds indoors around Jan 17–Jan 31; transplant outdoors around Mar 7–Mar 21. Expect to harvest around May 6–May 20.

StepWhen
Start seeds indoorsJan 17 – Jan 31
Transplant outdoorsMar 7 – Mar 21
HarvestMay 6 – May 20

Tip: Extremely frost-sensitive. Keep indoors until nights are reliably warm, then pinch often.

Zone 9a averages a last spring frost around Feb 28 and a first fall frost around Dec 5. These are zone averages — look up your ZIP for your exact area.

See the full Zone 9a calendar in the tool →

Other herbs in Zone 9a

Basil in nearby zones