Carried by 21 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Giant coreopsis is a woody perennial plant native to California and Baja California. Its stem is actually a tall, thick trunk, occasionally branching. Bright green leaves and flowers adorn the top of the trunk; the rest of the trunk is bare. The flowers are daisy-like and yellow,, attracting birds, butterflies, moths and other pollinators. Giant coreopsis is summer deciduous, leaving a bare trunk in summer. Its unusual form and generous flowering nature make this plant a welcome addition to gardens near the coast.
Giant Coreopsis is quite drought-adapted. Though not native to San Diego County, it is distributed on the South California central coast, north and central Southern California coast, the California Channel Islands, and further south on Guadalupe Island, Mexico. It's becoming more common due to its use in revegetation projects.
Shrub
3 - 8 ft Tall
2 - 4 ft Wide
Rounded, Upright Columnar
Moderate
Summer Deciduous, Winter Deciduous
None
Yellow
Spring, Winter
Bank stabilization, Hedge
Full Sun
Extremely Low, Very Low
Never irrigate once established
Moderate
Tolerates cold to 25° F
Fast, Medium
Prefers sand or sandstone.
Soil PH: 5.0 - 7.0
Dried leaves may be removed in summer if desired.
May be propagated from cuttings taken in winter. For propagating by seed: No treatment.
14, 15*, 16*, 17*, 19, 20*, 21*, 22*, 23*, 24*
Coastal sage scrub or chaparral hillsides, dunes, and seabluffs. Prefers to be within a few miles of the coast
Coastal Beach & Dune, Coastal Scrub
Seacliff Buckwheat (Eriogonum parvifolium), Red Sand Verbena (Abronia maritima), Beach Sage (Artemisia pycnocephala), Beach Morning glory
Butterflies and moths supported
1 confirmed and 3 likely
Orange Tortrix Moth
Argyrotaenia franciscana
Sunflower Moth
Homoeosoma electella
Wavy-Lined Emerald
Synchlora aerata