Gaillardia (Blanket Flower) in Zone 9a & 9b
Gaillardia x grandiflora
When to plant gaillardia (blanket flower) in zone 9b
Zones 9a and 9b 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. Gaillardia (Blanket Flower) tolerates either.
| Start indoors | Dec 28–Jan 4 '27 |
|---|---|
| Direct sow / transplant outside | Feb 22–Mar 1 |
| Estimated bloom | May 13–May 20 (~80 days after planting) |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 1-1.5 ft.

Gaillardia (blanket flower) is one of the few heat-tolerant annuals here that stays put instead of sprawling across the bed. It forms a tidy 10-15 inch mound and just keeps blooming through the kind of summer heat that shuts down less tolerant flowers.
How gaillardia (blanket flower) fits zone 9's season
Zone 9b's frost-free window runs about 293 days, from February 15 to December 5. Gaillardia (Blanket Flower) needs about 80 days from sowing to first harvest.
Good companions
No standout companions recorded yet for Gaillardia (Blanket Flower).
Where to buy gaillardia 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 gaillardia (blanket flower)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 9b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

Pin this for later
Growing Gaillardia (Blanket Flower) in USDA zone 9b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
Save to Pinterest