Xeranthemum (Immortelle) in Zone 6a & 6b
Xeranthemum annuum
When to plant xeranthemum (immortelle) in zone 6b
Zones 6a and 6b 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 | Mar 14–Mar 21 |
|---|---|
| Direct sow / transplant outside | Apr 25–May 2 |
| Estimated bloom | Jul 19–Jul 26 (~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 6's season
Zone 6b's frost-free window runs about 173 days, from April 25 to October 15. 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
See why we recommend these suppliers →
As an Amazon Associate we earn from qualifying purchases. Some links on this page also go to other retailers we may earn a commission from as an affiliate, at no extra cost to you. We only recommend products with a genuine consensus of positive, independent reviews. See the sources cited on each item.
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 6b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
%20in%20USDA%20zone%206b%3A%20when%20to%20start%20seeds%20indoors%2C%20when%20to%20direct-sow%2C%20and%20when%20to%20expect%20a%20bloom.)
Pin this for later
Growing Xeranthemum (Immortelle) in USDA zone 6b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
Save to Pinterest