Corn Poppy in Zone 11a & 11b
Papaver rhoeas
When to plant corn poppy in zone 11b
Zones 11a and 11b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Corn Poppy doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Dec 18–Dec 25 |
| Estimated bloom | Mar 18 '27–Mar 25 '27 (~90 days after direct-sowing) |
Spacing: 4 per square foot (square-foot-gardening spacing). Mature height: 1-2 ft.
Corn poppy is the classic red field poppy of European farmland, a fast, easy annual that self-sows so readily once established that a single good year of blooms often leads to volunteers coming back on their own.
How corn poppy fits zone 11's season
Zone 11b is frost-free in this dataset, so frost is not what limits the calendar here. What you can plant, and when, comes down to summer heat and daylength instead.
Good companions
No standout companions recorded yet for Corn Poppy.
Where to buy corn poppy seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing corn poppy" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 11b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Corn Poppy in USDA zone 11b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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