Sweet Annie (Artemisia) in Zone 10a & 10b

Artemisia annua

When to plant sweet annie (artemisia) in zone 10b

Zones 10a and 10b share the same average frost dates in our data, so this page covers both.

Method: Either: Start indoors for an earlier harvest, or direct-sow outside for less fuss. Sweet Annie (Artemisia) tolerates either.

Start indoors	Dec 19–Dec 26
Direct sow / transplant outside	Jan 30–Feb 6
Estimated bloom	May 10–May 17 (~100 days after planting)

Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 4-6 ft.

Sweet Annie is not the culinary tarragon already covered on this site, though the two share a genus. This one is grown for its sweetly aromatic, feathery foliage, a favorite for wreaths and as a fragrant filler in dried arrangements.

How sweet annie (artemisia) fits zone 10's season

Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Sweet Annie (Artemisia) needs about 100 days from sowing to first harvest.

Good companions

No standout companions recorded yet for Sweet Annie (Artemisia).

Where to buy sweet annie seeds

See why we recommend these suppliers →

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See it growing

Search YouTube for "growing sweet annie (artemisia)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

← Back to the full zone 10b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

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Growing Sweet Annie (Artemisia) in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.

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