Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Oregon cherry or Bitter cherry (Prunus emarginata) is a species of Prunus native to western North America, from British Columbia south to California, and east to western Wyoming and Arizona. It is often found in recently disturbed areas, open woods, on nutrient-rich soil. It is a deciduous shrub or small tree growing to 1-15 meter tall with a slender oval trunk with smooth gray to reddish-brown bark with horizontal lenticels. The leaves are 2-8 centimeter long, thin, oval-shaped, and yellowish-green with unevenly-sized teeth on either side. The flowers are small, 10-15 millimeter diameter, with five white petals and numerous hairlike stamens; they are almond-scented, and produced in clusters in spring, and are pollinated by insects. The fruit is a juicy red or purple cherry 7-14 millimeter diameter, which, as the plant's English name suggests, are bitter. As well as reproducing by seed, it also sends out underground stems which then sprout above the surface to create a thicket.

Plant type

Tree, Shrub

Size

3 - 80 ft Tall

Form

Rounded

Growth rate

Moderate

Dormancy

Winter Deciduous

Calscape icon
Color

White, Yellow, Green

Flowering season

Spring

Special uses

Bank stabilization, Hedge

Sun

Full Sun, Partial Shade

Water

Very Low

Ease of care

Moderate

Soil drainage

Medium, Slow

Soil description

Tolerates clay but does best in moist loamy soil.

Propagation

For propagating by seed: Soak in water at room temperature for 8 days, and stratif y at 45°F for 5 mos. Fresh seeds give better results (Sorrell 1981).

Sunset Zones

1, 2*, 3, 4*, 5*, 6*, 7*, 8, 9, 10, 14, 15*, 16*, 17*, 18*, 19, 20, 21, 22, 23

Site type

Rocky slopes

Plant communities

Chaparral, Red Fir Forest, Yellow Pine Forest

Bats
Caterpillars
Butterflies

Butterflies and moths supported

10 confirmed and 156 likely

Confirmed Likely

Eupithecia maestosa

Elegant Sheepmoth

Hemileuca eglanterina

Ceanothus Silkmoth

Hyalophora euryalus

Lorquin's Admiral

Limenitis lorquini