Carried by 36 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Grindelia stricta is a species of flowering plant in the Asteraceae (Sunflower) family known by the common names Coastal Gumweed and Oregon Gumweed. It is native to the west coast of North America from California to Alaska, where it is a resident of coastal plant communities such as those in marshes and beaches. In California it is found from the Channel Islands northwards, typically in close proximity to the coast. There are three recognized Varieties: This plant is variable in appearance, taking the form of a weedlike perennial herb forming low clumps to a sprawling subshrub growing erect to heights exceeding one meter. Its foliage and stems are green to rusty red or purplish and the plant may be hairy to hairless. The fleshy leaves are green, often with red edges and veining, and are up to 15 centimeters in length on large plants. The flower cluster holds one or more flower heads each up to 5 centimeters wide. The flower head is a cup of thick erect or recurved green phyllaries. Yellow disc florets fill the center of the flower head and there is a fringe of yellow ray florets around the circumference. The head produces copious white exudate, especially in the early stages of blooming. This exudate was used by native people as an adhesive.
Perennial herb
3 - 5 ft Tall
7 ft Wide
Spreading
Moderate
Summer Semi-deciduous
None
Yellow, Red
Spring, Summer, Fall
Groundcover, Deer resistant
Full Sun, Partial Shade
Low, Moderate, Very Low
Max 3x / month once established
Easy
Tolerates cold to 30° F
Fast, Standing
Typically sandy.
Tolerates saline soil..
Soil PH: 5.0 - 7.5
Deadhead to encourage flowering
Rooted cuttings
Tidal flats, marshes, dunes, seabluffs and coastal strand where it receives extra moisture from fog and sea spray. Also occurs in coastal sage scrub in more upslope areas
Coastal Salt Marsh, Coastal Strand, Northern Coastal Scrub, Wetland-Riparian
Other coastal plants such as Sand Verbena (Abronia spp.), Silver Beachweed (Ambrosia chamissonis), Beach Sage (Artemisia pycnocephala), Morningglory (Calystegia spp.), Beach Evening Primrose (Camissoniopsis cheiranthifolia), Seaside Daisy (Erigeron spp.), Lupine (Lupinus spp.), Hummingbird Sage (Salvia spathacea), Penstemon species.
Butterflies and moths supported
0 confirmed and 10 likely
Orange Tortrix Moth
Argyrotaenia franciscana