How to prune Aronia?

Aronias are bushes prized for their edible black or red berries, with a blackcurrant-like flavour. These bushes originate from North America, growing between 50 cm and 3 m tall depending on the species. They bear single, slightly dentate leaves that turn beautiful red or orange hues in autumn. Discover all our advice for pruning Aronia: what tools are needed, when and how to prune?

Why prune Aronia?

Pruning Aronia is optional, not essential for its growth, however it improves berry production and helps give the bush a more balanced shape while controlling its size. While most Aronias are fairly compact, some like Aronia arbutifolia can reach up to 3 m tall at ripeness! Pruning Aronia makes harvesting berries easier by keeping them at a convenient height. It also helps rejuvenate the young plant, encourages denser growth and removes dead, diseased or damaged parts. Additionally, Aronia spreads by producing suckers (new shoots growing from the roots): pruning helps control this and manage its growth.

When to prune Aronia?

Prune Aronia in late winter, between February and March, while it's still in dormancy. For bushes at least 5 years old, we recommend severe pruning every other year to rejuvenate them, with lighter pruning in alternate years. Light pruning can also be done after flowering, by shortening the year's new shoots and foliage.

Aronia tends to produce suckers. You can prune these as you spot them, as they appear.

How to prune Aronia?

First, it's best to disinfect cutting tools with 90° alcohol to avoid spreading diseases between plants.

Always cut just above a branching or node (point where leaves and stems attach). This helps the plant heal and regrow more easily. Also, make angled cuts so rainwater doesn't pool on the wound.

Start by removing diseased, damaged or dead branches.
Remove poorly positioned branches and those that cross, which may interfere with each other.
Open up the bush's centre to let in light. This improves air circulation and reduces disease risks.
Trim branch tips to slightly shorten them.
Every two years, cut old branches back by about 1/3 to stimulate new shoot growth and rejuvenate the bush.
Step back to observe the bush's overall shape. It should be balanced with well-spaced branches.
Also prune suckers by cutting them at ground level.