Ammobium (Winged Everlasting) in Zone 10a & 10b
Ammobium alatum
When to plant ammobium (winged everlasting) in zone 10b
Zones 10a and 10b share the same average frost dates in our data, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. Ammobium (Winged Everlasting) needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Dec 19–Dec 26 |
|---|---|
| Direct sow / transplant outside | Jan 30–Feb 6 |
| Estimated bloom | Apr 20–Apr 27 (~80 days after transplanting) |
Spacing: 4 per square foot (square-foot-gardening spacing). Mature height: 1.5-2 ft.

Ammobium, commonly called winged everlasting for the papery white bracts and the winged ridges running down its stems, is an uncommon but easy dried-flower crop worth trying if the more familiar strawflower feels overdone.
How ammobium (winged everlasting) fits zone 10's season
Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Ammobium (Winged Everlasting) needs about 80 days from transplant to first harvest.
Good companions
No standout companions recorded yet for Ammobium (Winged Everlasting).
Where to buy ammobium seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing ammobium (winged everlasting)" 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 Ammobium (Winged Everlasting) in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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