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Interior Silktassel
Garrya congdonii
  
About Interior Silktassel (Garrya congdonii) 2 Nurseries Carry This Plant Garrya congdonii or Congdon silktassel, a fairly common evergreen shrub native to the coastal ranges of California, is one of a small biological family of approximately twenty known species in the family Garryaceae, most of which are Garrya. While the female and male sexual organs of Congdon silktassel are on separate plants, the pendant male catkins are much more showy. This plant is reasonably attractive and neat enough in its growing habit to be appealing as a landscape species. It is stocked commonly at commercial plant nurseries. All Garrya are associated with warm temperate regions of North America. Congdon silktassel has a multi-furcate trunk branching structure yielding an almost spherical form. The height can attain four meters, but more commonly averages two to three meters in the wild. Congdon silktassel, as all the genus Garrya, have opposite leaves that have a tough leathery feel, glossy green on top, but paler, slightly furry and duller on the underside. The dioecious flowers are concentrated in flower clusters which cascade downward as aments of approximately three to five centimeters in length. While the Congdon silktassel manifests separate male and female plants, the pendant male catkins are much more evident, up to 25 centimeters long; those of the female are shorter and silver-grey. Although the flowers bloom in late January and February, dried leafs remain on the tree well into summer as light gray decorations. The plant has smooth dark bark, dark-greenish when young, but with age the bark roughens. New twigs are green and moderately stout.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
10 - 13.1 ft tall

Dormancy
Dormancy
Evergreen

Flower Color
Flower Color
White, Cream, Green

Landscaping Information
Sun
Sun
Full Sun

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Common uses
Common uses
Hedges

Sunset Zones
Sunset Zones?
7, 9, 14, 15, 16, 17, 19

Natural Setting
Climate
Climate
Annual Precipitation: 15.6" - 91.0", Summer Precipitation: 0.16" - 3.19", Coldest Month: 34.9" - 52.5", Hottest Month: 55.2" - 75.1", Humidity: 0.44" - 25.02", Elevation: 69" - 6515"

Alternative Names
Common Names: Chaparral Silk-tassel, Chaparral Silktassel, Congdon's Silk-tassel


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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