A YEAR'S GARDENING 



12 or i8 inches high, a prolific flowerer and continuing to bloom 

 until cut down by frost. It is a bold, free-growing plant and will 

 thrive in any good soil. 



DIPSACUS {Teasel). Although this is a coarse-growing plant 

 its striking form and fine foliage render it valuable for the Wild 

 Garden or wood plantations. It is easily raised from seed and may 

 be treated either as an annual or a biennial, or even as a perennial, 

 as it will often perpetuate itself. The finest kind is D. laciniatus, 

 which grows to a height of 5 or 6 feet, and is proportionately sturdy, 

 with large, deeply-cut leaves. 



DODECATHEON {American Cowslip). A beautiful hardy 

 perennial, valuable for the Spring Garden or for the early-flower 

 border in a cool situation. It is easily raised from seed and will 

 quickly form large patches which may be (hvided every three or 

 four years. The early spring is the best time for division, when the 

 plants begin to renew their growth after their winter rest. 



DOG'S-TOOTH VIOLET. See Erythronium. 



DONDIA-EPIPACTIS. A charming httle plant well suited for 

 the Rock Garden and by no means difficult of culture. It grows some 

 3 or 4 inches high, and in the spring bears pretty flowers of a dehcate 

 yellow tint. It may be increased by division. 



DORONICUM {Leopard's Bane). A family of showy, vigorous- 

 growing plants, of which D. plantaginsum excelsum is generally con- 

 sidered the best. Its sturdy growth and its capability of tluriving 

 in any soil render it most useful as a covering for rough banks or for 

 the Wild Garden, where its large, bright yellow flowers of daisy-like 

 form are very effective in early spring. It can be easily propagated 

 by division of the roots. 



DOWNINGIA (otherwise Clintonia — ^which see.) 



DRACOCEPHALUM {Dragon's Head) . All this family is hardy 

 and includes both perennials and annuals well suited for the Rock 

 Garden or the mixed border. D. Ruyschianum is one of the best of 

 the perennials and is a handsome plant with flowers of bright purple 

 blue. Among the annuals are D. Moldavicum and D. canariensis 

 (sometimes known as Balm of Gilead), the former being esteemed 

 for the fragrance of its blue flowers. Perhaps the most beautiful 

 of all, however, is D. grandiflorum, of dwarf habit with fine clusters 

 of vivid blue flowers, eminently suited for the Rock Garden. AU may 

 be raised from seed and the perennials increased by division. 



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