Red-barked dogwood (Cornus alba)

Photo: Opioła Jerzy (Poland), CC BY 2.5 · source

Pruning guide · Shrub

Red-barked dogwood: when and how to prune

Cornus alba

Prune a red-barked dogwood in late March–early April: saw a third of the stems off low every year, the oldest first, or cut everything back to 10–20 cm every other year for the brightest red stems.

The red-barked dogwood (Cornus alba) is a shrub of 2–3 m planted for its coral-red stems, which glow in winter. Only the young stems colour a really fine red: older branches turn greyish brown. That is why it only looks its best if you prune it hard every spring. Never prune it and within a few years you have a grey, dense shrub with no winter colour. It copes with hard pruning without any trouble and regrows vigorously in spring.

Key facts
Pruning monthsMarch–April
Nesting season (15 March–15 August)Take care in March–April
FloweringMay–June
Native to BelgiumNo, planted

Red-barked dogwood: when to prune it?

Prune in late March–early April, just before the leaves appear. That way you have enjoyed the red stems all winter.

Don’t prune in autumn or early winter: you would saw off the very stems that look so good.

In April, first check that no birds are nesting in the shrub.

What else to prune in those months? March · April

Red-barked dogwood: how to prune it?

  1. Every year, saw a third of the stems off as low as possible, the oldest and greyest first. The shrub then stays full of young, red stems.
  2. For the brightest colour, cut all stems back to 10–20 cm above the ground every other year. It regrows vigorously in spring.
  3. On variegated forms, cut out branches with plain green leaves back to where they start: they are more vigorous and crowd out the variegated parts.
  4. After hard pruning, give some compost around the base.

How much to cut, and how often?

  • Every year a third of the stems, or everything every other year.
  • If you cut everything back, you will have fewer flowers and white berries that year.

What does it mean for wildlife?

  • Late March–early April already falls in the nesting season (from 15 March). Blackbirds and dunnocks like to nest in a dense dogwood: look carefully first, and spare the part around an active nest.
  • The flat, yellowish-white flower heads in May–June attract bees, hoverflies and beetles. If you cut everything back every year, there are fewer flowers: cut back half at a time in turn.
  • In late summer birds eat the white berries, and a dense dogwood thicket shelters small birds in winter.
  • The red-barked dogwood is a non-native. The native common dogwood gives red winter stems just as well, and feeds more native insects.

Common mistakes

  • Never pruning, so the shrub turns grey and loses its winter colour.
  • Pruning in autumn, so the red stems are gone before winter.
  • Shortening all the stems to the same height instead of sawing them off low.
  • Leaving the green branches on variegated forms.

Caution: Do not prune in autumn or early winter: you would be cutting off the very twigs you want to see. In April, check first that no birds are nesting in the shrub.

Nearby: related pruning guides

Similar to: Difference from common dogwood

Plant profile: Red-barked dogwood · Pruning calendar and basic rules

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