Helianthus californicus DC.
Asteraceae (Aster Family)
USDA Symbol: HECA5
The stout, erect stems of this California perennial rise 6-8 feet, or more, from a spreading root system. Each shoot bears narrowly oval, bright-green leaves. The top branches multiply into flower bearing stalks. Relatively small, yellow flowers occur in profuse numbers.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Up to about 11 feet tall, often less.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct
Native Distribution: C. & s. CA
Native Habitat: Boggy meadow; stream banks
Growing ConditionsLight Requirement: Sun
Soil Moisture: Moist
Soil Description: Moist soils.
Conditions Comments: California sunflowers may need staking to prevent them from falling over.
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Increase by root division or seed.
Seed Treatment: No pretreatment is necessary.
Commercially Avail: yes
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Santa Barbara Botanic Garden - Santa Barbara, CA
Web ReferenceWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Additional resourcesUSDA: Find Helianthus californicus in USDA Plants
FNA: Find Helianthus californicus in the Flora of North America (if available)
Google: Search Google for Helianthus californicus
MetadataRecord Modified: 2022-12-28
Research By: TWC Staff