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Arctostaphylos glandulosa ssp. adamsii
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Laguna Mountain Manzanita
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Arctostaphylos glandulosa ssp. adamsii

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About Laguna Mountain Manzanita (Arctostaphylos glandulosa ssp. adamsii) Laguna Mountain Manzanita (Arctostaphylos glandulosa ssp. adamsi) is a native shrub that grows in Southern California, primarily in the Peninsular Range region. It tends to grow in rocky outcrops, slopes and ridges, primarily at elevations over 3000 ft. It tends to be a spreader and sprawler but can be kept neat by pruning. Its gray-green foliage contrasts nicely with red stems and white/pink flowers.
Plant Description
Plant Type

Max. Height
8 ft (2.4 m)

Max. Width
8 ft (2.4 m)


Growth Rate


Flower Color
Pink, White, Red, Brown

Flowering Season
Spring, Winter

Native Status

Natural Setting
Site Type
Rocky outcrops, slopes, ridges

Sun, Part Shade

Elevation ?
59' - 7079'

Annual Precip. ?
11.1" - 32.8"

Summer Precip. ?
0.24" - 3.08"

Coldest Month ?
38.5° F - 55.3° F

Hottest Month ?
61.6° F - 79.7° F

Humidity ?
1.78 vpd - 29.80 vpd

Soil Description
Tolerates clay but performs best in well drained soil

Soil PH
5.0 - 7.0

Medium, Slow

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

Sunset Zones ?

Wildlife Attracted
Insects and Hummingbirds are attracted to the flowers. Various birds are attracted to the fruits and seeds.

Landscaping Information
Ease of Care
Moderately Easy

Water Requirement ?
Very Low
Extremely Low
Very Low
Moderate - High

Common uses
Bird Gardens, Hummingbird Gardens, Bee Gardens

Nursery Availability
Rarely Available

Other Names
Common Names
Adams' Manzanita

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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