TREES AND SHRUBS. 
381 
6 to ioft. high. Both bear small white flowers. Grow in a 
sandy soil and plant in autumn. Increased by cuttings of 
half-ripened wood inserted in sandy soil in gentle heat in 
spring. 
Colutea. (Bladder Senna). — Hardy deciduous flowering 
shrubs of special beauty. C. arborescens, the only species 
worthy of note, belongs to the Pea order (Leguminosae), and 
has pinnate leaves and yellow pea-like flowers borne in August. 
It is not suitable for small gardens, but in large gardens, 
especially those with a sandy soil, this shrub is well suited 
for planting in masses. It also does well on banks where few 
other shrubs will grow well. Plant in autumn. Increased 
by seeds sown outdoors, or by cuttings in ordinary soil in 
October. The flowers are succeeded by rose-tinted bladder- 
like pods, which are more or less attractive. Native of S. 
Europe. 
Coronilla. — Hardy shrubs and perennials, belonging to 
the Pea order (Leguminosm). C. Emerus (Scorpion Senna) 
grows 3 to 6ft. high, has pinnate leaves and reddish or yellow 
flowers borne in summer and autumn. It is a South European 
shrub, hardy in sheltered positions and in well-drained soils, 
and often retains its foliage all the winter. C. iberica is a 
native of Asia Minor, grows about a foot high, and has trailing 
shoots furnished with yellow blossoms in summer. C. varia 
has rose-coloured flowers in summer and spreading shoots. 
The two latter are hardy herbaceous perennials suitable for 
sunny rockeries. Both like a deepish well-drained soil. Plant 
in autumn or spring. Increased by seeds sown in sandy 
soil in a cold frame in spring ; cuttings of young shoots in 
sandy soil in a cold frame in autumn ; also by division in 
autumn. 
Corylopsis. — Hardy deciduous flowering shrubs, belong- 
ing to the Witch Hazel order (Hamamelidaceae). Two species 
are in cultivation and both produce their blossoms early in 
the year on leafless branches. C. spicata is the hardier of 
the two, and this comes from Japan. It bears yellow cowslip- 
scented blossoms in drooping racemes in February, and grows 
3 to 4ft. high. The other species, C. pauciflora, also bears 
similarly coloured and fragrant flowers in March, and grows 
2 to 3ft. high. Both require a sheltered position in the front 
of the shrubbery, and to be grown in a well-drained loam. 
Plant in autumn. Owing to their early-flowering character 
and their fragrance they deserve a place in every garden 
where there is room to grow choice shrubs. Increased by 
layering in summer. 
