Dividing Chrysanthemums: Timing and Procedure

A gardener with huge mums asks when and how to divide them without killing them.

Correct Timing

• Fall: After flowering (late October–November).
• Spring: Before summer heat (April–May).
• Never summer: High risk of loss.

Division Procedure

1. Dig entire clump.
2. Shake off soil.
3. Pull or cut apart into sections with roots and shoots.
4. Replant immediately at same depth.
5. Water well; keep consistently moist (not soggy) until established.

Resource

Better Homes & Gardens has a step-by-step guide with photos: bhg.com.

Divide at the right time, water carefully, and mums multiply reliably.