Photo: Franz Eugen Köhler, Köhler's Medizinal-Pflanzen, Public domain · source
Pruning guide · Herb
White horehound: when and how to prune
Marrubium vulgare
White horehound is best pruned in March.
| Pruning months | March |
|---|---|
| Flowering | June–August |
| Good for bees, butterflies and birds | Yes, for bees |
| Native to Belgium | No, planted |
White horehound: when to prune it?
From late February to March, when the new shoots start to grow.
What else to prune in those months? March
White horehound: how to prune it?
- Cut the old stems back to 5–10 cm above the ground.
- Remove dead or damaged pieces right at the base.
- In summer, cut off spent tips to limit self-seeding.
- Replace old, bare plants after a few years with young ones.
How much to cut, and how often?
- One pruning period a year: March.
What does it mean for wildlife?
- White horehound flowers in June–August, when it attracts bees.
- If you only cut back in March, the old stems stand through the winter: insects overwinter in them and birds eat the seeds.
Nearby: related pruning guides
Plant profile: White horehound · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.