Bigroot cranesbill (Geranium macrorrhizum)

Photo: Didier Descouens, CC BY-SA 4.0 · source

Pruning guide · Perennial

Bigroot cranesbill: when and how to prune

Geranium macrorrhizum

Bigroot cranesbill is best pruned in March and July.

Key facts
Pruning monthsMarch and July
FloweringMay–July
Good for bees, butterflies and birdsYes, for bees
Native to BelgiumNo, planted

Bigroot cranesbill: when to prune it?

Little needed. After flowering in July you can cut off the flower stems, and in March remove old, withered leaves.

What else to prune in those months? March · July

Bigroot cranesbill: how to prune it?

  1. After flowering, cut the spent stems off just above the leaves.
  2. In March, remove brown and damaged leaves so the new foliage comes through nicely.
  3. If the mat has become bare and leggy, cut it back hard in spring: it soon regrows.
  4. Wear gloves if you like: the scent of the leaves lingers on your hands for a long time.

How much to cut, and how often?

  • There are 2 pruning periods a year: March and July. You don’t have to prune in every one.

What does it mean for wildlife?

  • Bigroot cranesbill flowers in May–July, when it attracts bees.
  • If pruning falls during flowering, wait until it is over or leave part of the plant to flower, so bees and butterflies still benefit.

Nearby: related pruning guides

Plant profile: Bigroot cranesbill · Pruning calendar and basic rules

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

Laden…