Dense blazing star (Liatris spicata)

Photo: Chrumps, CC BY-SA 3.0 · source

Pruning guide · Perennial

Dense blazing star: when and how to prune

Liatris spicata

Dense blazing star is best pruned in March.

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

Dense blazing star: when to prune it?

Dense blazing star needs hardly any pruning. Cut away the dead stems and leaves in March, before the new shoots appear.

What else to prune in those months? March

Dense blazing star: how to prune it?

  1. In summer, cut faded spikes back to just above the leaves if you do not want seed.
  2. Leave the foliage after flowering until it yellows: this lets the corm build up reserves for next year.
  3. In March, cut all dead stems and leaves back to just above the ground.

How much to cut, and how often?

  • One pruning period a year: March.

What does it mean for wildlife?

  • Dense blazing star 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: Do not hoe or rake deeply around the plant: the corms sit just below the surface.

Nearby: related pruning guides

Plant profile: Dense blazing star · Pruning calendar and basic rules

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

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