Carried by 19 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Helenium puberulum is a species of flowering plant in the daisy family known by the common name rosilla. It is native to California and Baja California, where it can be found in moist habitats such as riverbanks and meadows. This is an annual or perennial herb varying in size and shape from a low stem with few branches to an erect, spindly stem nearing 1.5 meters tall. Most of the leaves are on the lower part of the plant, with the upper occupied by naked peduncles bearing flower clusters of several daisylike flower heads. Each head is mainly a spherical bunch of disc florets which are yellow when new and darken with age. Some heads also have a few to many yellow ray florets. The fruit is a hairy achene one to two millimeters long.
Perennial herb
5 ft Tall
Yellow, Cream
Summer
Water features or wet habitats
Full Sun
High, Moderate
Fast, Medium, Standing
Prefers sand but tolerates garden soil.
For propagating by seed: No treatment. (Emery and Frey 1971).
Streamsides, marshes, wetlands
Valley Grassland, Wetland-Riparian
Butterflies and moths supported
0 confirmed and 1 likely
Dainty Sulphur
Nathalis iole