Photo: Daderot, CC BY-SA 4.0 · source
Pruning guide · Fern
Korean rock fern (Polystichum tsus-simense): when and how to prune
Polystichum tsus-simense
Korean rock fern (Polystichum tsus-simense) is best pruned in March.
| Pruning months | March |
|---|---|
| Native to Belgium | No, planted |
Korean rock fern (Polystichum tsus-simense): when to prune it?
In March, before the new fronds unroll. Real pruning is not needed.
What else to prune in those months? March
Korean rock fern (Polystichum tsus-simense): how to prune it?
- Cut brown and damaged fronds off at the base with sharp secateurs.
- Leave healthy green fronds; they protect the crown in winter.
- Take care of the young, rolled-up shoots in the middle of the clump.
How much to cut, and how often?
- One pruning period a year: March.
What does it mean for wildlife?
- Don’t cut more than you need to: what stays standing gives insects and birds food and shelter.
Nearby: related pruning guides
- Christmas fern (Polystichum acrostichoides)
- Hard shield fern
- Japanese tassel fern (Polystichum polyblepharum)
- Soft shield fern
- Western sword fern (Polystichum munitum)
Plant profile: Korean rock fern (Polystichum tsus-simense) · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.