Xeranthemum (Immortelle) in Zone 8a & 8b
Xeranthemum annuum
When to plant xeranthemum (immortelle) in zone 8b
Zones 8a and 8b 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. Xeranthemum (Immortelle) tolerates either.
| Start indoors | Feb 11–Feb 18 |
|---|---|
| Direct sow / transplant outside | Mar 25–Apr 1 |
| Estimated bloom | Jun 18–Jun 25 (~85 days after planting) |
Spacing: 4 per square foot (square-foot-gardening spacing). Mature height: 1.5-2 ft.
Xeranthemum, also called immortelle or paper flower, is a papery-petaled daisy relative that holds its color remarkably well once dried, which is the entire reason it's grown.
How xeranthemum (immortelle) fits zone 8's season
Zone 8b's frost-free window runs about 230 days, from March 25 to November 10. Xeranthemum (Immortelle) needs about 85 days from sowing to first harvest.
Good companions
No standout companions recorded yet for Xeranthemum (Immortelle).
Where to buy xeranthemum seeds
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See it growing
Search YouTube for "growing xeranthemum (immortelle)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 8b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Xeranthemum (Immortelle) in USDA zone 8b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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