Lifespan: Annual, biennial or short-lived perennial.
Growth rate: Rapid.
Mature Size: 1-2' high and wide.
Flowers: Yellow toothed rays with yellow center. 2" wide.
Bloom: At intervals, all year or spring to fall depending on
local climate and water. Least likely to bloom in January.
Fruit: Seed head.
Leaves: Silvery-green, forming basal rosette to 6" high.
Stems: No thorns. Long, silvery-green, topped by single flower.
Wildlife: Attracts butterflies.
Toxic / Danger: All parts of plant are toxic.
Origin: Southwestern United States and Mexico.
Cultivation and Uses
USDA hardiness zones: 7-11.
Heat tolerant: Yes.
Drought tolerant: Yes.
Sun: Full sun.
Water once established: Once a month. Do not overwater.
Soil: Well drained, dry, no organic content, pH 6.6-9.0 (neutral
to highly alkaline). Prone to root rot in poorly drained soil.
Propagation: Seed. Can reseed in disturbed areas.
Uses: Ornamental, xeric garden.
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