Photo: Andrea Moro, CC BY-SA 4.0 · source
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Pruning guide · Perennial
Knotted cranesbill (Geranium nodosum): when and how to prune
Geranium nodosum
Knotted cranesbill (Geranium nodosum) is best pruned in March.
| Pruning months | March |
|---|---|
| Flowering | May–September |
| Good for bees, butterflies and birds | Yes, for bees |
| Native to Belgium | No, planted |
Knotted cranesbill (Geranium nodosum): when to prune it?
Pruning is hardly needed. In March, cut away the old, withered foliage before the new shoots appear.
What else to prune in those months? March
Knotted cranesbill (Geranium nodosum): how to prune it?
- In March, cut all old leaves and stems down to just above the ground.
- In summer, cut off spent flower stems if you want fewer seedlings.
- Leave the foliage in autumn: it protects the roots.
How much to cut, and how often?
- One pruning period a year: March.
What does it mean for wildlife?
- Knotted cranesbill (Geranium nodosum) flowers in May–September, 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
- Armenian cranesbill
- Bigroot cranesbill
- Bloody cranesbill
- Cambridge cranesbill (Geranium × cantabrigiense)
- Druce’s cranesbill (Geranium × oxonianum)
- Dusky cranesbill
Plant profile: Knotted cranesbill (Geranium nodosum) · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.