How to grow Chrysanthemum (kris-an-the-mum)
From the Greek chrysos, gold, anthemon, flower (Compositae). A genus of over 100 species of annuals, herbaceous perennials and sub-shrubs, distributed over Africa, America, Asia and Europe, including Britain. The well-known greenhouse and early-flowering (outdoor) chrysanthemums are descended from C. indicum, found in China and Japan, and C. morifolium (syn. C. sinense), from
Hardy perennials C. alpinum (syn. Leucanthemum alpinum) 3-6 inches, white flowers, summer, Pyrenees, Carpathians, scree in rock garden. C. argenteum (syns. Matricaria argentea, Pyrethrum argenteum, Tanacetum argenteum), 6 inches, sub-shrubby, grey-white stems and leaves, solitary white flowers, summer. C. cinerariifolium, 1-2 feet, white flowers, July and August. This is the species which produces pyrethrum insecticidal powder and is widely cultivated for this purpose in Japan and Kenya. C. coccineum (syn. Pyrethrum roseum), 2-3 feet, the pyrethrum of gardens, variable in colour; the origin of the garden pyrethrum (see Pyrethrum). C. haradjanii, 6 inches, silvery leaves, rock garden foliage plant. C. leucanthemum, oxeye daisy, 2-3 feet, white flowers, summer, Europe including Britain and North
should be removed when they appear. C. praeteritum, 9 inches, sub-shrubby, grey, finely divided aromatic foliage; foliage plant. C. ptarmicaefolium, 1 foot, silvery white, much divided foliage, white flowers, summer. Canary Islands. C. rubellum, 2-3 feet, single flowers, in
Cultivation The taller hardy perennials are useful border plants which will grow in any ordinary soil and sunny position.
They may be planted in spring or autumn and clumps should be lifted, divided and