The time to divide is during the spring. Save the newest plants at the edge of the clump and discard older plants from near the center. The following cultivars can be divided into the following plant types. Cushion mums are usually 2 feet tall or less and have a rounded, mounded growth habit and double flowers. Daisy types are named for their single daisy-like flowers with yellow centers.
Quilled mums have long, narrow petals that resemble quills.
Decorative mum have double or semi-double flowers and are taller plants. Pompon mums are less than 18 inches tall and produce masses of small, round, double flowers. Zest' - Cushion mum with bronze flowers. This information is for educational purposes only. References to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.