Rhamnus purshiana
Cascara
Description
Described once as looking like alder crossed with a birch with a cherry thrown in, mottled gray bark is topped with deeply-ridged, oval leaves usually dark green on their topside with lighter green underneath. Depending on the amount of sun it's grown in, the fall color can range from yellow to orange-red in the fall. The flowers are small, creamy greenish-white, generally hiding amongst the foliage in small clusters. Butterflies will seek out flowers. The fruit that follows are small, purple-black beads that attract many species of birds. This deciduous shrub can also be grown as a small tree with single-stemmed plants becoming a 30-50' tree if allowed. An attractive Oregon native.
Plant Type
Tree, Shrub
Height Range
6-12', 12-25', 25-40'
Width Range
3-6'
Flower Color
Green, Yellow
Flower Season
Spring
Leaf Color
Dark Green
Bark Color
Grey
Fruit Color
Black, Purple
Fruit Season
Summer
Sun
Full, Half
Water
Low
Growth Rate
Fast
Soil Type
Sandy, Loam, Rocky, Unparticular
Soil Condition
Poor, Well-drained, Moist
Soil pH
Neutral
Adverse Factors
n/a
Design Styles
Water Garden, Wild Garden, Woodland
Accenting Features
Specimen
Seasonal Interest
Spring, Summer
Location Uses
Background, Lawn, Patio, Raised Planter, Walls / Fences
Special Uses
Hedge, Screen, Shade Tree
Attracts Wildlife
Butterflies
Water between sunset and sunrise when temperatures and wind are the lowest.