in Tucson, Phoenix,
Arizona and California

Gardening in Tucson, Phoenix, Arizona and California

       Back to Plant List

Growing Psilostrophe cooperi: Whitestem Paperflower

social icons Facebook Twitter Pinterest Instagram

Form: A shrub behaving like a perennial herb.
Leaf retention: drought deciduous.
Growth rate: Rapid.
Mature Size: 1-2' high and 2-3' wide.
Flowers: Yellow rays, 1" wide, with darker yellow centers, last a long time, then turn papery off-white with age, and remain on plant.
Bloom: Spring through fall with some water. Ceases during drought.
Fruit: Seed in papery cone at center of dried flower head.
Leaves: Slender, hairy, silvery to green.
Stems: No thorns. Semi-woody, many-branched, leafy, hairy, silvery to green. One flower at each branch tip.
Wildlife: Attracts insects.
Toxic / Danger: Toxic to livestock, especially when plant is young.
Origin: California through New Mexico, Nevada, Utah and Mexico.

Cultivation and Uses
USDA hardiness zones: 8b-11.
Heat tolerant: Yes.
Drought tolerant: Loses leaves, dies to ground after several months.
Sun: Full sun to part shade.
Water once established: Once or twice a month.
Soil: Well drained, dry, sandy, low organic content, pH 6.6-8.5 (neutral to alkaline).
Litter: Low.
Propagation: Seed.
Uses: Ornamental, dry flower arrangements.

Another common name is Paper Flower.

Do you have additional information or a different experience for this plant that you would like to share?
Email All contributions are welcome and appreciated.

copyright ©

Psilostrophe cooperi: Whitestem Paperflower - flowers

Psilostrophe cooperi: Whitestem Paperflower