Field ManualAll plants

California Poppy
Eschscholzia californica
Family: Papaveraceae
- Drought Tolerant
- State Flower of California
Pet & Human Safety
People: Not researchedPets: Not on the ASPCA lists as we read them
Not on the ASPCA cat or dog plant lists, and not addressed by NC State Extension's own toxicity fields either. Eschscholzia californica is a different genus from true poppies (Papaver, the source of opium alkaloids) despite the shared common name: it contains its own distinct isoquinoline alkaloids (such as californidine), historically used in mild traditional sedative preparations for people, but no formal pet-toxicity finding was located in the sources checked for this guide.
PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.
Poison control
If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.
Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.
Naturalist Lore
Historical Background & Breeding Lore
The history of this plant and its name, and how it was bred, where we have them.
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- Hardiness zones
6a - 10b (NC State Extension); a drought-tolerant, cool-season annual, and a short-lived perennial in zones 8-10
- Mature size
Space plants 12 in to 3 ft apart.
- Where it comes from
Southwestern US to Mexico, including California, Washington, Nevada, and New Mexico
How to prepare the soil, when and what to feed, and how and when to prune where that applies.
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Botanical Anatomy & Characteristics
How the flowers and leaves are built and which pollinators visit, where we have them.
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Field Doctor
What can go wrong with this plant and what to do about it, where we have them.
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Vintage Plates
Old botanical drawings from public libraries are in the app, for plants where we have them.
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