LIST OF HERBACEOUS PERENNIALS 



35 



DELPHINIUM, TOURN. LARKSPUR. 

 (Ranunculacece.) 



The vivid colour of the flowers of most larkspurs and the great height to which 

 many of them grow make them among the most striking of the summer flowering 

 perennials. The small number of good blue flowering plants available also makes the 

 larkspurs almost a necessity in the hardy border where a good colour scheme is planned. 

 Larkspurs thrive well in almost any good loamy soil, but for best results with the tall 

 ones and the named varieties the soil should be rich and well supplied with moisture 

 in the middle of summer, which is their blooming season. A second bloom may be 

 obtained by cutting the flowering steins off near the ground as soon as the first flowers 

 are over, but this practice, by which much of the foliage is destroyed, may eventually 

 weaken the plants. The tall larkspurs need staking, as they break down easily. The 

 best named sorts are very fine, but they are high priced, and as excellent varieties may 

 be obtained by planting the seed of the named ones it is more economical and more 

 interesting to grow them from seed. If sown in the autumn or early in the spring 

 the seed germinates readily, and fine young plants will be obtained in one season which 

 will bloom the next. Old plants divide readily, and good kinds are propagated in this 

 way. 



***D. Bella Donna. 



PL, 1901. Hardy. Ht. 4* ft. FL 

 sky blue; June 18 to July 28. 



***D. Blue Butterfly. 



PL, 1904. Half hardy. Ht. 1 to 

 2 ft. FL blue; July 3 to Aug. 8. 



D. cardinalis, HOOK. California. 

 PL, 1905. Tender. 



***D. cashmirianum, EOYLE. Himalayas. 

 PL, 1903. Hardy. Ht. li to 2 ft. 

 FL blue; July and Aug. 



**D. cashmirianum album. 



PL, 1905. Hardy. Ht. 1* to 2 ft. 

 FL white; July and Aug. 



**D. caucasicum, 0. A. MEY. Caucasus. 



PL, 1901. Hardy. Ht. 7 to 7i ft. 



FL deep blue; June 29 to Aug. 4. 



**D. cheilanthum, FISCH. Siberia. 



PL, 1901. Hardy. Ht. 3} to 4 ft. 

 FL deep blue ; June 27. to Aug. 1. 



D. Duhmbergi, HUTH. 



PL, 1905. Hardy. Ht. 5 ft. FL 

 purple, whitish at base; July 22 

 to Aug. 16. 



***D. dyctiocarpum, DC. Siberia. 



PL, 1905. Hardy. Ht. 5} ft. FL 

 pale blue; July 6 to Aug. 6. 



***D. elatum, L. Europe, &c. 

 Syn. D. cuneatum, Stev. 

 PL, 1901. Hardy. Ht. 8 ft. FL 

 deep blue; July 4 to Aug. 10. 



D. elatum intermedium. 



PL, 1901. Hardy. Ht. 3* ft. FL 

 purplish blue; July 4 to July 23. 



**D. elatum saphirnum. 



PL, 1901. Hardy. Ht. 8 ft. FL 

 deep blue; June 27 to Aug. 4. 



D.fissum, Waldst. 

 dum. 



& Kit. = D. liybr- 



D. chinense, Fisch. = D. 

 chinense. 



D. corymbosum, KEGEL. 

 PL, 1907. 



grandiflorum 



Turkestan. 



D. crassifolium, 

 sum. 



Schrad. = D. specio- 



D. cuneatum, Stev. = D. elatum. 



D. dictyocarpum, Steud. = D. 



carpum. 

 730 3i 



dyctio 



***D. grandiflorum, L. Siberia. 

 Syn. D. chinense. 



PL, 1901. Hardy. Ht. 2 to 3} ft. 

 FL blue; July 2 to Aug. 15. 



D. grandiflorum album. 

 PL, 1908. 



***D. grandiflorum chinense album. 



PL, 1903. Hardy. Ht. 3 ft. FL 

 white; July and Aug. 



***D. hybridum, STEPH. Europe and 



Orient. 

 Syn. D. fissum, Waldst. & Kit. 



PL, 1898. Hardy. Ht. 4 to 5 ft. 

 FL blue; June 21 to Aug. 1. 



