Leaf retention: Winter evergreen but drought-
Growth rate: Rapid.
Mature Size: 3-5' high and wide.
Flowers: Yellow rays with orange to brown centers on
tall stalks above leaves.
Bloom: Mid-fall through winter to mid-spring.
Fruit: Seed within center of dried flower head.
Leaves: Triangular to oval, silvery blue-green, fine hairs.
Stems: No thorns, brittle and easily broken. An aromatic
resin exudes from broken stem ends.
Wildlife: Attracts butterflies, especially when nothing
else around is blooming. Browsed by deer.
Toxic / Danger: No.
Origin: California, Nevada, Arizona, Utah, Mexico.
Cultivation and Uses
USDA hardiness zones: 9-10 in arid regions.
Heat tolerant: Yes.
Drought tolerant: Yes.
Sun: Full sun.
Water once established: Monthly. Overwatering causes excessive growth.
Soil: Very well drained, dry, low organic content, pH 6.6-8.5
(neutral to alkaline).
Prune: After flowering, trim tall flower stalks down to leaves.
Deadheading spent flowers reduces reseeding. Can be cut to near ground
level in mid-spring to avoid shaggy summer appearance.
Litter: Low except for pruning.
Propagation: Seed. Reseeds freely.
Uses: Ornamental, xeric garden. Aromatic resin has been used as
chewing gum, a glue, to waterproof containers, and burned as incense.
Leaves and stems brewed as tea for arthritis treatment by native
Not useful forage for cattle. Reseeding allows it to invade large areas.
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