California Poppy in Zone 8a & 8b
Eschscholzia californica
When to plant california poppy in zone 8b
Zones 8a and 8b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. California Poppy doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Mar 11–Mar 18 |
| Estimated bloom | May 30–Jun 6 (~80 days after direct-sowing) |
Spacing: 2 per square foot (square-foot-gardening spacing). Mature height: 0.5-1 ft.

California poppy is a direct-sow-only flower, and not because it's fussy. It's the opposite, thriving on neglect once it's in the ground. It stays under a foot tall, silky cup-shaped orange or yellow blooms over finely cut, blue-green ferny foliage. The catch is that the seed needs light to germinate, so anyone used to burying seed a half-inch deep will bury this one right out of viability.
How california poppy fits zone 8's season
Zone 8b's frost-free window runs about 230 days, from March 25 to November 10. California Poppy needs about 80 days from sowing to first harvest.
Good companions
No standout companions recorded yet for California Poppy.
Where to buy california poppy 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 california poppy" 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 →

Pin this for later
Growing California Poppy in USDA zone 8b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
Save to Pinterest