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Menzies' Goldenbush
Isocoma menziesii
About Menzies' Goldenbush (Isocoma menziesii) Nurseries Show All Photos Isocoma menziesii is a species of flowering plant in the Asteraceae (Sunflower) family known by the common name Menzies' goldenbush. It is native to central and southern California and Baja, where it grows in coastal and inland habitat such as coastal strand and coastal sage scrub, particularly in sandy soils. This is a subshrub forming a matted bush reaching up to one meter tall. The erect branching stems may be hairless to woolly, are generally hairy, and vary in color from gray-green to reddish-brown. The leaves are oval-shaped to somewhat rectangular, gray-green and sometimes hairy, and 1 to 5 centimeters long with stumpy teeth along the edges. The abundant flowers are held in clusters of thick flower heads. Each head is a capsule with layers of thick, pointed, greenish phyllaries. The head is filled with large, protruding, cylindrical yellow disc florets with long stigmas. It is useful in restoration projects. Because of it very long bloom time it is a good choice for coastal gardens in the southern part of the state.
Plant Description
Plant Type

Max. Height
1.6 - 3.3 ft (0.49 - 1 m)

Max. Width
5 ft (1.5 m)


Summer Semi-Deciduous

Flower Color

Flowering Season
Spring, Summer, Fall

Native Status

Natural Setting
Site Type
Coastal bluffs and other sandy places near the coast and extending to some inland canyons and slopes

Part Shade, Sun

Elevation ?
-30' - 5181'

Annual Precip. ?
7.2" - 46.5"

Summer Precip. ?
0.14" - 1.65"

Coldest Month ?
37.7° F - 57.3° F

Hottest Month ?
60.0° F - 83.4° F

Humidity ?
0.68 vpd - 34.96 vpd

Soil Description
Typically sandy

Soil PH
6.0 - 7.5

Fast, Medium

Cold Tolerance(° F)
Tolerates cold to 0° F

Companion Plants
Use with low growing coastal species such as Verbena (Abronia sp.), Sagebrush (Artemisia californica or pycnocephala), Morningglory (Calystegia macrostegia or soldanella), PrimRose (Camissoniopsis sp.), Cobweb Thistle (Cirsium occidentale), Clarkia sp., Seacliff Buckwheat (Eriogonum parvifolium), Western Wallflower (Erysimum capitatum), Lupine (Lupinus sp.), and Cardinal Catchfly (Silene laciniata)

Wildlife Attracted
Numerous insects including butterflies

Butterflies ?

Schinia erosa Image
Schinia erosaSchinia erosa
Sonia vovana Image
Sonia vovanaSonia vovana
Diastictis sperryorum Image
Diastictis sperryorumDiastictis sperryorum

Landscaping Information
Ease of Care
Very Easy

Water Requirement ?
Extremely Low
Very Low
Moderate - High

Moderately Popular

Max. Summer Water ?
No Summer Water
Keep moist


Common uses
Groundcovers, Butterfly Gardens, Bee Gardens

Nursery Availability
Commonly Available

Other Names
Botanical Names
Haplopappus venetus

Common Names
White-flowered Goldenbush

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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