If this entry seems like it has a few friends missing, blame the taxonomists. Many species formerly included under Chrysanthemum have been assigned new names and are noted below.
C. balsamita. See Tanacetum balsamita
C. coccineum. See Tanacetum coccineum
C. frutescens. See Argyranthemum frutescens
C. xgrandiflorum (C. x morifolium). FLORISTS' CHRYSANTHEMUM. Perennial. Zones US, MS, LS, CS; USDA 6-9. The most useful of all autumn-blooming perennials for borders, containers, and cuttingand the most versatile and varied of all chrysanthemum species. Hundreds of selections are available in many flower forms, colors, plant and flower sizes, and growth habits. Colors include white, yellow, red, pink, orange, bronze, purple, and lavender, as well as multicolors. Not browsed by deer.
It's easy to grow florists' chrysanthemums, not so easy to grow prize-winning ones. The latter need more water, feeding, pinching, pruning, grooming, and pest control than most perennials (see care box above). But if you're not planning on competing in the local flower show, choose from the following old-fashioned florists' chrysanthemumsall longtime border favorites that have survived at old homesites without a gardener in sight. Most have an open, casual look and bloom later than their modern counterparts. Try the following: 'Cathy's Rust', 23 ft., rich rusty red; 'Clara Curtis' ('Country Girl'), 23 ft., rosy pink; 'Ryan's Pink', 1122 ft., soft pink; 'Emperor of China', to 4 ft., silvery rose-pink flowers and red-flushed foliage; 'Hillside Sheffield' ('Sheffield Pink'), 212 3 ft., clear pink; 'Mrs. Hathaway', 212 ft., yellow; 'Single Apricot Korean', 23 ft., pale apricot; 'Venus', 23 ft., pale pink to white; and 'Virginia's Sunshine', 2 ft., soft yellow flowers as late as November.
Flower forms. Following are flower forms as designated by chrysanthemum hobbyists.
Anemone. One or more rows of rays with large raised center disk or cushion. Center disk may be same color as rays or different.
Brush. Narrow, rolled rays give brush or soft cactus dahlia effect.
Decorative. Long, broad rays overlap like shingles to form a full flower.
Incurve. Big double flowers with broad rays curving upward and inward.
Irregular incurve. Like above, but with looser, more softly curving rays.
Laciniated. Fully double, with rays fringed and cut at tips in carnation effect.
Pompon. Globular, neat, compact flowers with flat, fluted, or quilled rays. Usually small, they can reach 5 in. if buds are thinned to one or two per cluster.
Quill. Long, narrow, rolled rays; like spider but less droopy.
Reflex. Big double flowers with rays that curl in, out, and sideways, creating a shaggy effect.
Semidouble. Somewhat like single or daisy, but with two, three, or four rows of rays around a yellow center.
Single or daisy. Single row of rays around a yellow center. May be large or small, with broad or narrow rays.
Spider. Long, curling, tubular rays ending in fishhook curved tips.
Spoon. Tubular rays flatten at tip to make little disks, sometimes in colors that contrast with body of flower.
C. leucanthemum. See Leucanthemum vulgare
C. maximum. See Leucanthemum x superbum
C. pacificum. See Ajania pacifica
C. paludosum. See Leucanthemum paludosum
C. parthenium. See Tanacetum parthenium
C. weyrichii. Perennial. Zones US, MS; USDA 6-7. From Japan. Rock garden plant with finely cut leaves; forms a mat to 1112 ft. high and 1 ft. wide. Single, 2-in., white-to-pink daisies with yellow centers appear just above foliage in fall. 'Pink Bomb' has rosy pink rays, 'White Bomb' creamy white ones.
C. zawadskii. Perennial. Zones US, MS, LS, CS; USDA 6-9. To 2212 ft. high and wide, with finely cut leaves and 2- to 3-in. daisies over a long season beginning in late summer. 'Clara Curtis' has soft pink flowers; 'Mary Stoker' has blooms of soft yellow touched with apricot.