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Oregon Gumweed
Grindelia stricta
  
30 Nurseries Carry This Plant

About Oregon Gumweed (Grindelia stricta) 30 Nurseries Carry This Plant 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.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
3.3 - 5 ft tall
7 ft wide

Form
Form
Spreading

Growth Rate
Growth Rate
Moderate

Dormancy
Dormancy
Summer Semi-Deciduous

Fragrance
Fragrance
None

Flower Color
Flower Color
Yellow, Red

Flowering Season
Flowering Season
Spring, Summer, Fall

Wildlife Supported
 
Butterflies are attracted to the flowers and buds

 
Butterflies & moths hosted ( 11 likely * ) SHOW ALL
*
Hyles lineata Image
White-lined Sphinx Hyles lineataHyles lineata
*
Spodoptera praefica Image
Western Yellowstriped Armyworm Spodoptera praeficaSpodoptera praefica
*
Heliothis phloxiphaga Image
Spotted Straw Sun Moth Heliothis phloxiphagaHeliothis phloxiphaga
*
Homoeosoma electella Image
Sunflower Moth Homoeosoma electellaHomoeosoma electella
*
Mamestra configurata Image
Bertha Armyworm Mamestra configurataMamestra configurata
*
Argyrotaenia franciscana Image
Orange Tortrix Moth Argyrotaenia franciscanaArgyrotaenia franciscana
*
Pelochrista ridingsana Image
Snakeweed Borer Pelochrista ridingsanaPelochrista ridingsana

Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Moderate - High

Summer Irrigation
Summer Irrigation
Max 3x / month once established

Nurseries
Nurseries
Carried by 30

Ease of Care
Ease of Care
Very Easy

Cold Tolerance
Cold Tolerance
Tolerates cold to 30° F

Soil Drainage
Soil Drainage
Fast, Standing

Soil Description
Soil Description
Typically sandy. Tolerates Saline Soil. Soil PH: 5.0 - 7.5

Common uses
Common uses
Groundcovers, Deer Resistant, Butterfly Gardens

Companion Plants
Companion Plants
Other coastal plants such as Sand Verbena (Abronia species), Silver Beachweed (Ambrosia chamissonis), Beach Sage (Artemisia pycnocephala), Morningglory (Calystegia species), Beach Evening Primrose (Camissoniopsis cheiranthifolia), Seaside Daisy (Erigeron species), Lupine (Lupinus species), Hummingbird Sage (Salvia spathacea), Penstemon species.

Maintenance
Maintenance
Deadhead to encourage flowering

Propagation
Propagation?
Rooted cuttings

Natural Setting
Site Type
Site Type
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

Climate
Climate
Annual Precipitation: 11.8" - 75.0", Summer Precipitation: 0.17" - 1.98", Coldest Month: 43.7" - 55.7", Hottest Month: 56.6" - 72.5", Humidity: 0.02" - 18.29", Elevation: -59" - 1728"

Alternative Names
Common Names: Coastal Gumweed


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Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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