Creek Senecio, Threadleaf groundsel
Scientific Name: Senecio flaccidus var. douglasii (DC.) B.L. Turner & T.M. Barkley
Synonym: Senecio douglasii
Family: Asteraceae
Sunset®: 2-12
USDA: 6-10
Frost Tolerance: Hardy to -20° F (-28° C)
Sun Exposure: Full sun
Origin: Southwestern USA, and northwestern Mexico, up to 6000 feet elevation (1800 m)
Growth Habits: Bushy perennial, 3 feet tall (90 cm) or more, 2.5 feet spread (75 cm); glabrous leaves, 1 to 4 inches long (2.5-10 cm), with 5 to 9 needle-like lobes with tomentose undersides.
Watering Needs: Very low water
The variety is named after David Douglas (1798-1834), a Scottish plant collector.
Blooming Habits:
Numerous showy pale yellow flower heads with 8 to 13 ray flowers ("petals"), in June thru November
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