Propagating Plants: Dividing Perennials

Use this method to propagate most herbaceous perennials and to rejuvenate large, tired clumps that no longer flower well.
Flourishing Perennials

Flourishing Perennials

Dividing perennials, such as Achillea and Helenium , in early spring is an easy and economical way to fill large borders. After replanting, they will soon bulk up to form new flowering clumps.

Photo by: DK - How to Grow Practically Everything © 2010 Dorling Kindersley Limited

DK - How to Grow Practically Everything, 2010 Dorling Kindersley Limited

Dividing perennials, such as Achillea and Helenium , in early spring is an easy and economical way to fill large borders. After replanting, they will soon bulk up to form new flowering clumps.

Related To:

Plants to Divide

  • yarrow
  • aster
  • bergenia
  • bellflower
  • geranium
  • Helenium
  • heuchera
  • hosta
  • iris
  • Ligularia
  • bee balm
  • catmint
  • phlox
  • Polemonium
  • lungwort
  • rudbeckia
  • sedum
  • speedwell

Dig Up Plant

In early spring, select a healthy clump of plants and water them well. Cut back any top growth to the ground. Using a fork, lift the clump, taking care to keep the whole root ball intact.

Dig Up Plant with Whole Root Ball Intact

Dig Up Plant with Whole Root Ball Intact

Photo by: DK - How to Grow Practically Everything © 2010 Dorling Kindersley Limited

DK - How to Grow Practically Everything, 2010 Dorling Kindersley Limited

Divide With Forks

Cut solid crowns into portions with a spade or old knife. If you can't pry other pieces apart by hand, use two forks back-to-back to split the clump into smaller sections, ready for replanting.

Keep Plants from Regrowing

Keep Plants from Regrowing

Photo by: DK - How to Grow Practically Everything © 2010 Dorling Kindersley Limited

DK - How to Grow Practically Everything, 2010 Dorling Kindersley Limited

Replant

Discard dead central portions of overgrown clumps. Replant healthy hand-sized pieces with strong buds in soil improved with well-composted organic matter. Water in well.

Replant Healthy Pieces

Replant Healthy Pieces

Photo by: DK - How to Grow Practically Everything © 2010 Dorling Kindersley Limited

DK - How to Grow Practically Everything, 2010 Dorling Kindersley Limited

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