Deciduous & Flowering Shrubs

Crimson Pygmy Japanese barberry

Berberis thunbergii 'Crimson Pygmy'

Crimson Pygmy Japanese barberry forms a dense, spiny shrub generally 1–3 feet tall and 2–4 feet wide at maturity. Its reddish-purple summer leaves turn red in fall, while pale yellow spring flowers give way to red fruit that may persist into winter. Set it in a border or low hedge where its compact shape has room to spread and its spines stay clear of paths. Full sun brings stronger red foliage color; partial shade is also suitable. Choose well-drained soil, since wet ground can encourage root rot. Birds may eat the fruit and disperse its seed.

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At a glance

Mature height
Generally 1–3 ft
Mature spread
Generally 2–4 ft
Light
Full sun to partial shade
Hardiness
USDA Zone 4

The right plant, the right place

Make room for something good.

Its compact, dense habit suits borders and low hedges. Allow for a mature spread of about 2–4 feet.

Where to plant

Choose full sun for stronger red foliage color. Partial shade is suitable, though the leaves may be less red.

Through the seasons

Pale yellow flowers appear in spring, followed by reddish-purple summer foliage. The leaves turn red in fall, and red fruit may persist into winter.

Southwest Washington gardens

Give it a good start.

In Southwest Washington gardens, full sun supports stronger red foliage color. Shaded plants may have less red foliage.

Soil, drainage & water

Plant in well-drained soil. Avoid persistently wet ground, where root rot may develop.

A little care goes a long way

Growing well, season after season.

Check around the shrub for seedlings or growth extending beyond its intended area. Remove unwanted plants promptly to limit spread.

Know what to look for

Common growing concerns.

Symptoms can have more than one cause. These notes are a starting point for observing your plant and improving its growing conditions.

Wet-soil decline

Decline in persistently wet soil may indicate root trouble.

Help your plant thrive

Plant in well-drained soil and avoid sites that remain wet.

Unwanted spread

New plants or spreading growth appear beyond the intended planting area.

Help your plant thrive

Watch for seedlings and outward root growth; remove unwanted plants promptly.

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