20 THE BOOK OF SHRUBS 
summer and well matured shoots in the autumn. The 
former should be made three or four inches in length, 
inserted in pots filled with sandy soil, and placed in a 
pit or frame; while the autumn cuttings should be six 
or eight inches long, and be rooted in the open border. 
They contribute most liberally to the attractions of 
the flower garden when arranged in groups of three 
plants in the first or second row of the shrubbery accord- 
ing to their height. 
The species and varieties that can be specially recom- 
mended for their distinctness and beauty are: Deutzia 
corymbosa, a Himalayan species reaching a height of about 
three feet, having large leaves and producing corymbose 
panicles of pure white flowers. D. crenata, a surprisingly 
beautiful species of Japanese origin, forming a large 
compact bush ranging from four to seven feet in height 
according to the soil and other conditions. The flowers 
are white and produced in short racemes along the shoots 
of the previous year or on the spurs formed on the older 
wood. The finest varieties are Caniidissima, a very 
beautiful form, producing a profusion of double white 
flowers; flore plena has double flowers, white tinged 
with rose-purple; and purpurea plena an effective variety 
with flowers deeper in colour than those of the variety 
immediately preceding it. D. discolor, a distinct Chinese 
species, reaching a height of about five feet and blossoming 
freely, the flowers which are white being produced in 
small corymbs at the ends of the main branches and 
lateral growths; the variety purpurascens has white 
flowers suffused with rose-purple but is hardly so desir- 
able as the specific form. D. gracilis so well known and 
largely cultivated for flowering under glass early in the 
year is seldom satisfactory in the shrubbery because 
of the injury so frequently done to the growths of the 
previous year by the frosts; this species is still un- 
surpassed for conservatory decoration and the plants 
