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Bush Rue
Cneoridium dumosum
  
About Bush Rue (Cneoridium dumosum) 11 Nurseries Carry This Plant Cneoridium is a monotypic genus in the Rutaceae (citrus family) which contains the single species Cneoridium dumosum, known by the common name Bushrue. This is an aromatic is shrub native to the coastal bluffs of southern California and Baja California. This highly-branched shrub may exceed a meter in height and sprawl about as wide. Its twigs are covered in small linear green leaves and flowers in clusters of one to three. Each flower is just over a centimeter wide with four or five rounded white petals and eight yellow-anthered white stamens. The bunching fruits are round reddish-green berries about half a centimeter wide covered in a thin peel which is gland-pitted like that of a common citrus fruit. Each berry contains one or two spherical seeds. May cause dermatitis in some people so use with caution. In the summer, the leaves of the plant turn an attractive golden color.

This is a tough and easy to grow plant. Amazingly drought tolerant but still tolerates occasional summer water better than most plants. It prefers full sun, and tolerates a wide variety of soil types. In the summer, its leaves turn an attractive golden color, and will green back up after the rainy season begins.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
3.3 - 5 ft tall
3 - 5 ft wide

Form
Form
Mounding

Growth Rate
Growth Rate
Moderate, Slow

Dormancy
Dormancy
Evergreen, Summer Semi-Deciduous

Fragrance
Fragrance
Fragrant - Pleasant

Flower Color
Flower Color
White, Yellow

Flowering Season
Flowering Season
Winter, Spring

Wildlife Supported
 
Hummingbirds and insects are attracted to the flowers. Various birds and small mammals are attracted to the fruits.

Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Extremely Low, Very Low

Summer Irrigation
Summer Irrigation
Never irrigate once established

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Cold Tolerance
Cold Tolerance
Tolerates cold to 0° F

Soil Drainage
Soil Drainage
Fast, Medium

Soil Description
Soil Description
Often but not always found on eroded gabbro or sandstone soils. Soil PH: 6.0 - 8.0

Common uses
Common uses
Bank Stabilization, Butterfly Gardens, Butterfly Host Plants, Groundcovers

Companion Plants
Companion Plants

Propagation
Propagation?
For propagating by seed: 1-2 mos. stratification. For propagating from cuttings: Take ~4 inch cuttings in winter or spring from stems at least 1 year old. Remove foliage from bottom half of stem and pre-treat with a rooting compound. Place stems in mix of half peat and half moist pearlite. Water mixture and put in a plastic bag that is not entirely sealed. Place in a warm spot but not in direct sunlight. Roots should appear within 30 days.

Sunset Zones
Sunset Zones?
8, 9, 14, 15, 16, 17, 18, 19*, 20*, 21*, 22*, 23*, 24*

Natural Setting
Site Type
Site Type
Mesas, bluffs, canyons and marine terraces of San Diego and Orange Counties as well as Baja California, Mexico, where it is a component of Southern Maritime Chaparral, Coastal Sage Scrub, or Maritime Succulent Scrub.

Climate
Climate
Annual Precipitation: 9.6" - 25.8", Summer Precipitation: 0.19" - 1.59", Coldest Month: 41.6" - 56.7", Hottest Month: 69.0" - 78.4", Humidity: 1.25" - 24.27", Elevation: -2" - 4033"

Alternative Names
Common Names: Bushrue


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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