Hardy garden mum Chrysanthemum morifolium Photo/Illustration: Chris Curless 1 2 3 4 5 6 7 8 9 10 11 Hardy garden mum (Chrysanthemum morifolium) kris-AN-theh-mum mor-ih-FOE-lee-um Synonyms: Dendranthema morifolium Genus: Chrysanthemum There would be few cut flowers blooming in October were it not for hardy garden mums. Their clusters of flowerheads show over a long period and are available in many colors, including red, orange, yellow, white, and lavender. Noteworthy Characteristics: Looser habit than florist mums. Long stems that are good for cutting. Care: Garden mums need fertile soil and can take light shade, although they grow best in full sun. Plants can be pinched back in early summer if not used for cutting. Divide as needed in spring or fall. Garden mums are often used as annuals. Propagation: Take cuttings in early spring and root in soilless mix with sand on the surface, at 61°F. Place in a cold frame with ventilation and harden off in mid-spring. Problems: Aphids, earwigs, nematodes, capsid bugs, leaf miners, whiteflies, thrips, and spider mites. Potential disease problems include Botrytis, leaf spots, rust, powdery mildew, stem and root rots, verticillium wilt, aster yellows and viruses. Overview Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Habit Clumps Growth Pace Moderate Grower Light Full Sun to Part Shade Moisture Medium Moisture Maintenance Moderate Characteristics Showy Flowers Bloom Time Fall, Late Summer, Summer Flower Color Pink, Purple, Red, White, Yellow Uses Beds and Borders, Cut Flower Style Cottage Garden Seasonal Interest Fall Interest Type Perennials Related Plants to Chrysanthemum morifolium 1 2 3 4 5 6 7 8 9 10 11 False chamomile Boltonia asteroides 1 2 3 4 5 6 7 8 9 10 11 Meadow clary Salvia pratensis 1 2 3 4 5 6 7 8 9 10 11 Meadow rue Thalictrum rochebruneanum 'Lavender Mist' 1 2 3 4 5 6 7 8 9 10 11 Meadow rue Thalictrum rochebruneanum View the discussion thread.