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Bitter-berry

Prunus virginiana var. demissa

Care

Sun

full sun, part shade

Water

moderate

Soil

Medium; Tolerates a variety of soils.

Size

15–25ft tall , 10–20ft wide

Bloom

Mar-May

Foliage

Deciduous

Flowers

Prized

Edible

Berries eaten fresh or cooked. Traditional Indigenous food source

Keystone Plant

Supports up to 262 butterfly and moth species in Mediterranean California

Native Range

Riparian woodlands and montane forests of the Sierra Nevada, Cascade Range, and northern California mountains from 2000-7000 ft elevation, extending to Oregon and Washington.

Care Guide

Planting

Plant your bitter-berry in full sun or part shade in fall or early spring. It tolerates a variety of soils and prefers medium drainage, so you don't need to amend heavily - just ensure water doesn't pool around the roots. Space it with room to reach 15–25 feet tall and wide, as it will sucker and expand over time. This native California shrub is extremely cold-hardy and will thrive in the Bay Area's climate.

After Planting

Water moderately for the first year to establish a strong root system, then cut back to a maximum of twice monthly during summer once established. In year one, expect deciduous leaf drop in fall and flowering in March through May - this is normal. Pruning needs are minimal; shape it as a shrub or small tree based on your preference. The #1 mistake is overwatering: this plant is drought-tolerant once established, and excess water causes more problems than neglect.

Visit Calscape for more information about Bitter-berry

Wildlife Supported

Birds

Fruit · Year-Round

Fruits consumed during breeding season and fall migration; peak availability Aug-Sep

Fruit · Year-Round

Gregarious feeding on fruits; critical winter nutrition source

Fruit · Year-Round

Important fall and winter food source; sustains populations through cold months

Insects

Larval Host · Year-Round

Colonies defoliate branches Apr-Jun; pupate in late June

Larval Host · Year-Round

Larvae feed on foliage and developing fruit; primary host plant in Rosaceae

Pollen · Spring

Specialized early spring forager; adults emerge with Prunus flowers

Larval Host · Year-Round

Large caterpillars feed on foliage; overwinter as pupae in silk cocoons

Larval Host · Year-Round

Caterpillars strip leaves May-Jun; can cause significant defoliation

Mammals

Fruit · Year-Round

Pre-hibernation foraging; fruits consumed Aug-Oct for caloric accumulation

Foliage · Year-Round

Browse new growth and foliage during growing season

Where to Buy

Native Here Nursery

101 Golf Course Dr, Tilden Regional Park, Berkeley

Sat 10am-2pm

3.0 mi (510) 549-0211 Website