Darwin's barberry

Sun

Full sun to partial shade; flowering is usually strongest in sun.

Water

Water regularly while establishing; established plants tolerate short dry spells but grow best with some moisture during prolonged drought.

Soil

Well-drained soil, from mildly acidic to alkaline; tolerates clay if it does not remain waterlogged.

Height

6-10 ft (1.8-3 m)

Spread

6-10 ft (1.8-3 m)

Flowers

Golden-orange to deep orange flower clusters in spring, usually March-May in the Northern Hemisphere and August-October in the Southern Hemisphere.

Foliage

Evergreen. Small, glossy, dark green leaves with sharp, holly-like teeth; dense branching and spiny stems.

Growth

Moderate

Care needed

Low

• Pollinators
• Deer resistant
• Drought tolerant
• Heat tolerant
• Wildlife
• Low allergen

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Easy

Toughness

Very tough

Pick your zone, country, light and whether you have pets.

1. Planting day

   1.6 ft (0.5 m)

2. After 1 year

   2.9 ft (0.88 m)

3. After 2 years

   4 ft (1.3 m)

4. After 3 years

   5 ft (1.6 m)

5. After 5 years

   8 ft (2.4 m)

   full size

About 5 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Mildly toxic: may upset a stomach

Invasive in

the UK and Australia

Growth rate

Moderate

• Water deeply during dry spells for the first two growing seasons.
• Apply a 2-3 in (5-8 cm) organic mulch in spring, keeping it clear of the stems.
• Feed only if growth is weak; a light spring application of a balanced fertiliser is usually sufficient.
• Wear thick gloves and long sleeves when handling the spiny branches.
• Check beneath nearby trees and hedges for bird-sown seedlings and remove them promptly.

Pruning. Prune just after flowering, shortening unwanted shoots and removing dead, damaged or crossing branches. For an overgrown shrub, remove some of the oldest stems at the base over two or three years rather than shearing it hard every season.

Early spring

Check for winter damage and remove dead branches once healthy growth is easy to identify.

Spring

Mulch over moist soil and water newly planted shrubs during dry weather.

Late spring

Prune after flowering if shaping or thinning is needed.

Summer

Water young plants during prolonged dry spells and pull out unwanted seedlings.

Late summer

Take semi-ripe cuttings from healthy, non-flowering shoots.

Autumn

Plant in mild areas while the soil is workable, but only where local invasive-plant guidance permits.

• Use as a dense informal boundary hedge where its spines will not obstruct public paths.
• Place at the back of a mixed shrub border for an evergreen framework and spring colour.
• Combine with spring-flowering shrubs and bulbs in a woodland-edge planting.
• Use as a flowering screen in a sheltered coastal garden, away from direct exposure to severe salt-laden winds.

Garden styles it suits: English country, Cottage garden, Woodland, Native hedgerow, Low-maintenance and Pacific Northwest woodland.

Plant it with: Camellia, Viburnum, Daffodil, Hellebore, Hardy geranium and Hart's-tongue fern.

Wildlife: Spring flowers attract bees and other pollinating insects. Birds eat the berries and shelter in the dense branches, but they also carry seeds into surrounding land.

• Waterlogged soil can cause root rot and dieback: improve drainage or move the shrub to a better-drained position.
• Powdery mildew can mark leaves in dry, crowded conditions: water during drought and thin congested growth to improve airflow.
• Aphids sometimes cluster on young shoots: wash off small colonies with water and encourage natural predators.
• Cold, drying winds can scorch evergreen leaves: choose a sheltered site and avoid pruning damaged growth until spring.

Not generally listed as toxic to people, cats, dogs or horses, although species-specific veterinary information is limited. Avoid eating roots, bark or leaves, which contain alkaloids and may cause stomach upset. The sharp spines are a significant handling hazard.

Where it spreads. Invasive in New Zealand and locally invasive in the United Kingdom and Ireland. It is also an environmental weed in parts of southeastern Australia, including Tasmania and Victoria, and escapes cultivation in the Pacific Northwest of the United States. Birds disperse its seeds into woodland and scrub; check local restrictions before planting.

• Juliana's barberry (Berberis julianae)

  Has much longer, narrow, sharply toothed leaves and yellow rather than orange flowers.

• Holly-leaved barberry (Berberis aquifolium)

  Has compound leaves made up of several broad, holly-like leaflets and upright clusters of yellow flowers; Darwin's barberry has small, simple leaves.

• Stenophylla barberry (Berberis × stenophylla)

  Has narrower, mostly smooth-edged leaves and more slender, arching branches; its flowers are usually golden yellow. It is a hybrid with Darwin's barberry as one parent.

The species name darwinii honours Charles Darwin, who collected the plant in South America during the voyage of HMS Beagle.

Propagation. Take semi-ripe cuttings in late summer. Seed can also be sown fresh outdoors, but germination may be slow and seedlings can spread beyond the garden; avoid seed propagation in regions where it is invasive.

Accepted botanical name

Berberis darwinii

In the US and Canada

Introduced in the lower 48 states.

Native range

Argentina South, Chile Central and Chile South.

Measured

Average height 100 cm.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.