in Tucson, Phoenix,
Arizona and California

Gardening in Tucson, Phoenix, Arizona and California

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Eschscholzia californica: California Poppy

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Form: Herb
Lifespan: Annual to perennial. Usually grown as annual.
Growth rate: Rapid.
Mature Size: Normally 8" high.
Flowers: Orange-yellow flowers 2" wide.
Bloom: Winter into spring. Blooming period may last up to four months among a group of plants.
Fruit: Long, narrow, grooved, seed pod.
Leaves: Feathery, highly-divided, blue-green.
Stems: No thorns.
Roots: Does not transplant once seed has sprouted, unless grown in small plug and transplanted with a few days of germination.
Wildlife: Attracts bees.
Toxic / Danger: Mildly poisonous if ingested.
Origin: Western United States and Mexico.

Cultivation and Uses
USDA hardiness zones: 5-10.
Heat tolerant: Yes.
Drought tolerant: Yes.
Sun: Full sun.
Water once established: Monthly. Supplemental water may improve bloom but soil must dry out between waterings.
Soil: Well drained, dry, low organic content, not compacted, pH 5.6-8.5 (acidic to alkaline).
Prune: Deadhead flowers to extend bloom.
Litter: Low.
Propagation: Seed. Self-seeds easily.
Uses: Ornamental.

This species is highly variable. It includes the Mexican Poppy as a subspecies — Eschscholzia californica var. mexicana. Other common names are Golden Poppy and California Golden Poppy.

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Eschscholzia californica: California Poppy - flowers

Eschscholzia californica: California Poppy