Bog asphodel (Narthecium ossifragum)

Photo: R.J. Casimir (= user Casimir), CC BY-SA 3.0 · source

Pruning guide · Herbaceous plant

Bog asphodel: when and how to prune

Narthecium ossifragum

Bog asphodel is best pruned in March.

Key facts
Pruning monthsMarch
FloweringJuly–August
Native to BelgiumYes

Bog asphodel: when to prune it?

In March, if you want to clear the old fruiting stems; otherwise no pruning is needed.

What else to prune in those months? March

Bog asphodel: how to prune it?

  1. Leave the orange fruiting stems standing over winter.
  2. In March cut them just above the leaf fans, before the new leaves grow.
  3. Only pull away dead leaves gently if they come loose by themselves.

How much to cut, and how often?

  • One pruning period a year: March.

What does it mean for wildlife?

  • If you only cut back in March, the old stems stand through the winter: insects overwinter in them and birds eat the seeds.
  • As a native plant, it feeds more insects than a non-native species.

Caution: Don’t step on the rhizomes in a bog garden or on wet heath: they are fragile.

Nearby: related pruning guides

Plant profile: Bog asphodel · Pruning calendar and basic rules

This guide is compiled from the Bladwijzer plant profile and pruning calendar.

Laden…