The boxwood is hardy and can withstand severe frosts well. But that applies to an uninjured bush. Cutting causes many open cuts, making it susceptible to frost damage. Nevertheless, pruning earlier in the year is increasingly recommended. Does it make sense?
Can I prune my boxwood when there is frost?
You should not cut your boxwood (Buxus) on frosty daysas it is at risk of frost damage. Ideally, cut between April and the end of September. Pruning betweenJanuary and Marchcan sometimes still make sense to prevent fungal diseases andbox tree borer
Which weather is better for cutting?
When you cut it is extremely important for the he alth of the shrub. The cutting day for the common boxwood (Buxus sempervirens) and all other species should beneither too sunny nor rainy. This also applies for a few days afterwards, and for rain also for the days before.
- note current weather and medium-term weather forecast
- Sun can burn exposed leaves
- Rain wetness disrupts wound healing
- Fungal diseases can spread more easily
Why does early cutting help against boxwood moth?
The butterfly lays its eggs on the evergreen boxwood up to four times a year. The larvae of the last egg-laying hibernate in many small cocoons between the leaves. In spring they develop further and begin their devastating damage to the leaves. Depending on the weather, this can happen as early as March. If the boxwood is cut back heavily before the first new shoots appear, the clippingscan be used to remove a large proportion of the larvae This preventative winter pruning is recommended for heavily infested boxwoods despite the risk of frost.
How can I make cutting less risky in times of frost?
All pruning in early spring should only be carried out when there is no frost and no frost is forecast for the period immediately afterwards. Use suitable cutting tools withsharp bladesto ensure smooth, quickly healing interfaces. For example, sheep shears or special boxwood shears. Clean and disinfect Before you start cutting. Limit cutting to rough cutting, shape cutting can be done later in the year when there is no longer any danger of frost.
Tip
Protect boxwood after cutting in unfavorable weather
The announced weather can sometimes change unexpectedly. Intense sunlight, prolonged rain and severe frost can be devastating for freshly cut boxwood. Shade it for a few days or cover it with a rainproof tarpaulin. A covering made of plant fleece can help against the onset of frost.
