Carried by 2 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Slender Sunflower is a species in the Asteraceae (Sunflower) family that is native to central and southern California and Baja California, where it is a member of the chaparral and yellow pine forest habitats. This is a perennial herb growing from a thick taproot to heights anywhere between one half and two meters. The lance-shaped, pointed leaves are smooth-edged or slightly toothed and up to about 11 centimeters long. The long, slender stems and foliage are covered in rough hairs. The flower cluster bears flower heads with an array of short, hairy phyllaries behind a thick center of yellow to red-brown disc florets. The golden ray florets around the edge are one to three centimeters long. Grows well in chaparral and yellow pine forest habitats.
Annual herb, Perennial herb
2 - 7 ft Tall
6 - 12 in Wide
Yellow
Spring, Summer, Fall
Full Sun
Low
Max 1x / month once established
Tolerates cold to 5° F
Fast
Prefers sand but tolerates garden soil.
Soil PH: 6.0 - 8.0
For propagating by seed: No treatment.
3, 7*, 14*, 15*, 16*, 17, 18*, 19*, 20*, 21*, 22*, 23*, 24*
Flat places with slightly more moisture in the Coast, Transverse and Peninsular Ranges, primarily from San Benito County southward.
Chaparral, Yellow Pine Forest
Use with Toyon (Heteromeles arbutifolia), Lemonadeberry (Rhus integrifolia), Manzanita (Arctostaphylos spp.), Ceanothus species, Milkweed (Asclepias spp.), Giant Wild Rye (Elymus condensatus), Sand Aster (Corethrogyne filaginifolia), Sagebrush (Artemisia californica), Monkeyflower (Mimulus spp.), Buckwheat (Eriogonum spp.), Heartleaf Keckiella (Keckiella cordifolia), Penstemon species, Salvia species, and Blue-eyed Grass (Sisyrinchium bellum)
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Likely
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Confirmed
Anthophorula nitens
Horn-faced Leafcutter Bee
Megachile fidelis
Lippia Leafcutter Bee
Megachile lippiae
Sleepy Orange
Abaeis nicippe
Asparagus
Asparagus officinalis
Canola
Brassica napus
Chicory
Cichorium intybus
Melons
Cucumis melo