Boxwood

Boxwood is a classic in the garden – dense, evergreen and shapeable. It works just as well as low hedges and edging plants as for balls, spirals and other topiary details. With the right planting and care, boxwood can be a long-lived and elegant backbone in the garden all year round. 

Where does boxwood thrive best?

Boxwood thrives in large parts of Sweden, especially in sheltered locations. It likes:

Bright position: sun to partial shade (preferably not scorching sun + dry soil)

Shelter from wind: winter wind can dry out the leaves

Well-drained soil: boxwood dislikes standing wet

A perfect position is partial shade with morning sun and some wind protection – especially if you want to reduce the risk of winter desiccation.

Soil and preparations – how to get a good start

Boxwood wants nutrient-rich, humus-rich and well-drained soil. It often thrives best in soil that is not too acidic and likes the soil to be consistently moist but never wet.

This is how you prepare the planting site:

  • Dig thoroughly: at least 30–40 cm deep and wide.

  • Improve the soil: mix in compost or planting compost for structure and nutrients.

  • Ensure drainage: if the soil is heavy/clayey, mix in coarse sand or fine gravel.

  • Water the soil through before planting if it is dry.

Plant boxwood – step by step

The best time to plant boxwood is spring (April–May) or early autumn (August–September) when the soil is warm and moist.

Do this:

  • Water the plant in the pot thoroughly before you plant.

  • Place the plant in the hole so it ends up at the same height as in the pot (not deeper).

  • Fill with soil, press lightly and water generously.

  • Feel free to add a thin layer of mulch (e.g. bark mulch) around, but leave a little air around the stem.

Plant boxwood as a hedge

For a dense, low boxwood hedge:

  • set plants 20–30 cm apart (depending on size)

  • water extra carefully the first season – hedges dry out easily

Care of boxwood – watering, nutrition and winter tips

Boxwood is relatively easy to care for, but does best with regular attention.

Watering

  • Newly planted boxwood: water regularly the first year.

  • Established boxwood: water during longer dry periods, especially in a sunny position.

  • Winter desiccation is common: water thoroughly in autumn before the ground freezes.

Fertilising

  • Give nutrients in spring when growth starts.

  • Compost or a mild all-purpose fertiliser works well.

  • Avoid lots of nitrogen late in summer – soft shoots do not have time to harden off before winter.

Winter desiccation and sun damage

Boxwood is evergreen and can dry out when the sun warms the leaves but the roots are in frozen soil. Signs are yellow-brown leaves, mainly on the sunny side.

  • choose partial shade if possible

  • water well in autumn

  • protect sensitive plants with shade cloth in early spring if needed

Pruning and topiary – when and how?

Boxwood tolerates clipping very well and becomes denser the more you clip correctly.

Best time to prune

  • First clipping: May–June when growth has got going

  • Possible second clipping: July–August

  • Avoid late pruning in autumn – new shoots can freeze

How to clip neatly

Clip preferably on an overcast day or in the evening to avoid newly cut leaves getting scorched by the sun.

For a hedge: clip slightly conical (a bit narrower at the top) so the whole plant gets light.

For balls/shapes: clip a little and often rather than hard and seldom.

Tip: An even, dense boxwood is built over time. Better small corrections each year than trying to “save” the shape with a hard cut.

Common diseases and problems on boxwood

Boxwood can be affected by a few classic problems. The earlier you detect them, the greater the chance of saving the plant.

1) Box blight / boxwood disease (leaf and shoot dieback)

Symptoms:

  • brown/black spots on leaves

  • leaves that fall quickly

  • black streaks on shoots

Measures:

  • cut away affected parts immediately and throw in household waste (not compost)

  • improve air circulation: thin out and avoid overly dense plantings

  • water at the root, not over the leaves

  • clean secateurs between plants

2) Box tree moth (larvae)

Symptoms:

  • eaten leaves, “skeleton leaves”

  • webbing in the shrub

  • larvae inside the plant

Measures:

  • inspect often from spring to late summer

  • pick larvae if the infestation is small

  • cut away heavily attacked parts

  • if problems recur: consider switching to another hedge plant in the long run

3) Yellowing leaves

Common causes:

  • winter desiccation

  • nutrient deficiency

  • overly wet soil and lack of oxygen in the roots

Measures:

  • check drainage

  • water well before winter

  • give mild spring fertiliser and compost

Author: Emma Vogiatzi – trained gardener

Fact-checked by: Erik Hoekstra

Last updated 2026-01-15