Z. rosea are usually propagated by dividing clumps of bulbs, but can also be grown from seeds.

Lift and divide large clumps of pond plants and marginals.

September will also be a good time to divide and transplant crowded clumps.

Finish dividing established clumps of perennials and share viable roots with friends.

When dividing thick clumps of this plant in the summer, broken pieces of root will stain fingers or gloves.

To divide thick clumps, push a spade underneath the bulbs to lift them out of the soil.

Many of the lady-slippers available in the nursery are propagated by dividing clumps.

Divide clumps, making sure each root has a bud.

Lift and divide clumps if needed (also to be done in winter).

Divide clumps, pulling apart good-sized pieces by hand - they will already have roots.