THE AMATEUR’S FLOWER GARDEN. 
173 
flowers are sure to be disappointed. The old double yellow is 
a grand plant when well grown, both for the conservatory and 
the open border. The sort of border that suits wallflowers 
best is one adjoining the wall of a greenhouse, and the soil 
should consist of equal parts good sandy loam, and broken 
bricks, and old mortar, two feet in depth, resting on a dry 
subsoil. In such a border the double wallflowers will live for 
many years, and become handsome trees. Any aspect will 
suit them, and if four walls with four several aspects can be 
planted, there will be a succession of flowers from the turn of 
the year on the south side, to quite midsummer on the north. 
The alpine wallflower, C. alpinus , growing 6 to 9 inches 
high, with flowers of the brightest yellow, is a valuable plant 
for a dry border or rockery, and it bears shade well. Mar¬ 
shall’s wallflower, G . Marshalli , is extremely neat in growth, 
and remarkably showy when in flower ; it grows one foot high, 
and the flowers are of a deep orange colour. Both these can be 
grown from seeds or cuttings, and where they are employed 
in spring bedding, it is important to make sure of them by 
means of cuttings ; for they cannot be depended upon to pro¬ 
duce good seed in plenty: that, indeed, depends very much 
upon the peculiarities of the soil and the season. Those who 
are anxious about seed should make a plantation on a raised 
bank of poor sandy soil, in a bleak situation, to increase the 
seed-bearing tendencies of the plants. In fat soils they rarely 
produce seed, and are likely to be short-lived. 
VIOLA PEDATA. 
