Photo: Eric Hunt, CC BY-SA 4.0 · source
Pruning guide · Perennial
Rattlesnake master: when and how to prune
Eryngium yuccifolium
Rattlesnake master is best pruned in March.
| Pruning months | March |
|---|---|
| Flowering | July–September |
| Good for bees, butterflies and birds | Yes, for bees and butterflies |
| Native to Belgium | No, planted |
Rattlesnake master: when to prune it?
It needs hardly any pruning. In March, cut away the old stems and dead leaves, before new growth begins.
What else to prune in those months? March
Rattlesnake master: how to prune it?
- Leave the spent stems standing in autumn and winter for structure and for insects.
- In March, cut the old stems back to just above the rosette.
- Remove dead, brown leaves at the base without damaging the crown.
How much to cut, and how often?
- One pruning period a year: March.
What does it mean for wildlife?
- Rattlesnake master flowers in July–September, when it attracts bees and butterflies.
- If you only cut back in March, the old stems stand through the winter: insects overwinter in them and birds eat the seeds.
Caution: Wear gloves: the leaf edges and bracts are spiny.
Nearby: related pruning guides
Plant profile: Rattlesnake master · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.