Photo: Oscar den Uijl, CC BY-SA 3.0 · source
Pruning guide · Herbaceous plant
Marsh gentian: when and how to prune
Gentiana pneumonanthe
Marsh gentian is best pruned in October–November.
| Pruning months | October–November |
|---|---|
| Flowering | July–September |
| Native to Belgium | Yes |
Marsh gentian: when to prune it?
In October–November, after seed set.
Marsh gentian: how to prune it?
- Leave the stems after flowering until the capsules are brown and the seed has dispersed.
- Then cut or mow the dry stems short and remove them.
- Now and then, scrape open a small patch of soil next to the plant: new seedlings can germinate there.
How much to cut, and how often?
- One pruning period a year: October–November.
What does it mean for wildlife?
- As a native plant, it feeds more insects than a non-native species.
Caution: Never mow in summer: you would lose buds, flowers and the eggs of the Alcon blue.
Nearby: related pruning guides
Plant profile: Marsh gentian · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.