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Pruning guide · Perennial
Marsh spurge: when and how to prune
Euphorbia palustris
Marsh spurge is best pruned in July and November.
| Pruning months | July and November |
|---|---|
| Flowering | May–June |
| Good for bees, butterflies and birds | Yes, for bees |
| Native to Belgium | Yes |
| Poisonous to people and pets | Yes, take care with children and pets |
Marsh spurge: when to prune it?
After flowering, in July, you can cut off the seed heads. After the autumn colour, in November, cut the stems down to ground level.
Marsh spurge: how to prune it?
- In July, remove only the spent tips, just above the leaves: it will self-seed less.
- Leave the leafy stems until after the autumn colour.
- In November, cut the dead stems down to 5–10 cm above the ground.
- Wear gloves and eye protection: the thick stems release a lot of sap.
How much to cut, and how often?
- There are 2 pruning periods a year: July and November. You don’t have to prune in every one.
What does it mean for wildlife?
- Marsh spurge flowers in May–June, when it attracts bees.
- As a native plant, it feeds more insects than a non-native species.
Caution: Cutting the sturdy stems releases a lot of milky sap. Keep it out of your eyes and wash your hands afterwards. Marsh spurge is poisonous: wear gloves and keep clippings away from children, pets and livestock.
Nearby: related pruning guides
Plant profile: Marsh spurge · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.