Glaucous sedge (Carex flacca)

Photo: Kristian Peters -- Fabelfroh 09:16, 13 July 2006 (UTC), CC BY-SA 3.0 · source

Pruning guide · Ornamental grass

Glaucous sedge: when and how to prune

Carex flacca

Glaucous sedge is best pruned in March.

Key facts
Pruning monthsMarch
FloweringMay–June
Native to BelgiumYes

Glaucous sedge: when to prune it?

Hardly needed, as it is evergreen. In March you can refresh the mat.

What else to prune in those months? March

Glaucous sedge: how to prune it?

  1. Comb out brown, dead leaves with gloved fingers or a rake.
  2. If the mat looks untidy after winter, cut or mow it once to 5–10 cm; new leaves grow back quickly.
  3. Cut off runners that go too far at the edge with a sharp spade.

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: Do not cut or mow in autumn: the old leaves protect the plant in winter.

Nearby: related pruning guides

Plant profile: Glaucous sedge · Pruning calendar and basic rules

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

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