24 THE BOOK OF SHRUBS 
shaped yellow flowers being freely produced. A 
frequent renewal of stock is desirable as old plants 
become bare and unsightly. G. cinerea, a charming 
species, reaching a height of about three feet, elegant in 
growth, and blooming freely in July, the flowers yellow. 
G. hispanica, a handsome species of dense growth, rang- 
ing from twelve to eighteen inches high and most 
profuse in flowering, the flowers yellow and produced in 
clusters at the points of the growth; G. Aispanica fl. pl. 
is a handsome form with double yellow flowers, and like 
the species, specially adapted for prominent positions in 
the rock garden. G. pilosa has a prostrate habit, bears 
an abundance of yellow flowers, and is most useful for 
raised banks and the rock garden, and G. virgata, a 
handsome species, five or six feet in height, blooming 
from April to July, and bearing a profusion of yellow 
flowers. 
Hisiscus.—The varieties of Hibiscus syriacus (syn. 
Althea frutex) are very attractive when grown under 
favourable conditions, and these briefly stated are a 
light warm soil and a sunny position. They are readily 
raised from seed, and a packet of seed will yield plants 
giving a diversity of colours. The plants range from 
five to seven feet in height and bloom freely during the 
summer months, in light soils and sunny positions, but in 
heavy soils and in positions where they are screened 
from the sun they are most unsatisfactory. The flowers 
are campanulate, four inches or so in shape, and those of 
the type are deep rose with crimson brotch at the base 
of each petal. 
HaMaMeELis oR Witcn Hazers.—These interesting 
shrubs deserve special attention for their singularly 
formed flowers, and the fact that they bloom at mid- 
winter. The several species in cultivation resemble the 
common hazel nut more especially in the foliage which 
takes on a rich colour in the autumn. They will grow 
