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Frangula purshiana

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Frangula purshiana

Cascara, Pursh's Buckthorn

Community: Mountain

Brief Description

Handsome glossy leaves on a slender understory tree.

Full details »
  • Bold Texture Leaves
  • Small Tree
  • Shade Tolerant
  • Decorative Autumn Berries

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Availability: Temporarily sold out. New inventory is made available in the spring and fall of each year.

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Plant Description and Details

Deeply embossed veins and glossy dark green color of Cascara leaves give the tree/shrub great ornamental value. Living in full sun to semi-shaded, dry to moist areas, Cascara has graceful open branching. Distinct blue-blackberries in small clusters punctuate the branches in late summer and provide food for birds (non-edible for humans). Bark is valued as a Native American medicinal, and since WWII, has been harvested commercially for its laxative qualities.

Common Names Cascara, Pursh's Buckthorn
Community Mountain
Annual Water Needs 20-30 inches
Drought Tolerant No
Native Range ow foothills and shady, damp areas along rivers, WA, OR, ID, MT, CA.
Native States CA, ID, MT, OR, WA
Hardiness Down to Zone 6
Exposure Sun - Shade
Soil Preference Various, Well Drained
Placement Banks of a pond or river, in a forest setting or stand alone in a dry corner if supplement water to 20-30" total per year.
Mature Height 12 - 20 ft.
Mature Width 12 ft.
Group Spacing 8 - 15 ft.
Blossom Color Green/Inconspicuous
Maintenance Tips Open branching, with a slender growth habit in the wild, Cascara will develop a fuller, more shrub-like form if pruned yearly, or prune to a central trunk.
Wildlife Birds
Plants Symbol FRPU7
Family Name Rhamnaceae
Lewis & Clark Yes
 

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