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Cluster Rose
Rosa pisocarpa
  
About Cluster Rose (Rosa pisocarpa) 1 Nurseries Carry This Plant Cluster Rose (Rosa pisocarpa) is a native shrub that grows in northern California in the Sierras and North Coast Range. It is fast growing and short-lived, with fewer thorns than some other members of the genus. It grows in an irregular form to a height of 6 feet. Flowers are red and striking, and bloom in the summer. Leaves are medium green and deciduous. It tends to grow in moist areas, at elevations from 0-5,000 feet.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
3 - 6 ft tall

Growth Rate
Growth Rate
Fast

Dormancy
Dormancy
Winter Deciduous

Fragrance
Fragrance
Fragrant - Pleasant

Flower Color
Flower Color
Red, Pink

Flowering Season
Flowering Season
Summer

Wildlife Supported
 
Various insects and birds are attracted to the flowers and fruits

 

Landscaping Information
Sun
Sun
Part Shade

Moisture
Moisture
Moderate - High

Summer Irrigation
Summer Irrigation
Keep moist

Nurseries
Nurseries

Cold Tolerance
Cold Tolerance
Tolerates cold to 0° F

Soil Description
Soil Description
Adaptable, tolerant of sand, loam and clay. Soil PH: 6.0 - 7.5

Companion Plants
Companion Plants
Use with Maple (Acer circinatum or glabrum), Alder (Alnus sp.), Spice Bush (Calycanthus occidentlis), Ceanothus sp., Giant Chinquapin (Chrysolepis chrysophylla), Dogwood (Cornus sp.), Coffeeberry (Frangula sp.), Silk Tassel (Garrya buxifolia or fremontii), Mock Orange (Philadelphus lewisii), and Pines (Pinus sp.)

Propagation
Propagation?
For propagating by seed: 3-4 mos. stratification; preceding this by 2-3 mos. warm stratification may improve germination (USDA Forest Service 1974).

Sunset Zones
Sunset Zones?
1, 4*, 5*, 6*, 7*, 14, 15, 16, 17

Natural Setting
Site Type
Site Type
Moist areas of the northern mountains below 5,500 ft.

Climate
Climate
Annual Precipitation: 13.1" - 154.9", Summer Precipitation: 0.33" - 5.92", Coldest Month: 11.1" - 52.0", Hottest Month: 34.4" - 79.3", Humidity: 0.17" - 25.55", Elevation: 11" - 14042"


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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