Shrub Library

Barberry

Berberis thunbergii

Barberry is a compact, thorny, drought-tolerant shrub that holds color through the Colorado growing season and tolerates the alkaline, low-organic soils common along the Front Range.

Quick specifications

Mature Size
3–6 ft tall | 3–6 ft wide (varies by cultivar)
Growth Rate
Slow to moderate
Form
Dense, rounded shrub
Foliage
Green, red, or burgundy depending on cultivar
Sun
Full sun to partial shade (best color in full sun)
Water
Avoid overwatering; prefers dry soils
Soil
Performs well in alkaline and compacted soils
Bloom
Small yellow blooms (spring)
Lifespan
40+ years with minimal care
Hardiness
Excellent cold hardiness and wind tolerance
Native Status
Non-native

Overview

Barberry is a dense, thorny deciduous shrub grown primarily for foliage color rather than bloom. Cultivars range from deep burgundy to gold and chartreuse.

Its thorns make it effective as a barrier planting, and its low water requirement suits xeric and transition beds.

Identification

  • Burgundy barberry foliage with red fruit along a thorny stem

    Leaf detail

  • Red barberry fruit persisting on the shrub into fall

    Fruit

Colorado Suitability

Excellent drought tolerance once established.

Handles alkaline Front Range soils without amendment.

Reliable winter hardiness at Douglas County elevations.

Deer generally avoid it.

Planting Considerations

  • Site in full sun; shade reduces foliage color and density.
  • Space for mature width — crowded plants thin out at the base.
  • Avoid low, poorly drained beds.

Care

  • Water deeply but infrequently through summer; overwatering causes root problems.
  • Apply a coarse mulch, kept off the crown, to moderate soil temperature.
  • Continue winter watering during dry, warm spells.

Pruning

  • Shear or thin in late winter before bud break.
  • Remove dead interior wood annually to keep the canopy open.
  • Wear heavy gloves — thorns are stiff and numerous.

Best Use Scenarios

  • Xeric and low-water landscapes
  • Foundation plantings and mass beds
  • Security hedges and barrier plantings
  • Windy and exposed Front Range sites

Common Problems

  • Root rot in overwatered or poorly drained beds.
  • Leaf spot in wet springs.
  • Thinning and legginess in shaded plantings.
  • Some cultivars are restricted in certain jurisdictions — confirm before planting.
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