. The Book of gardening; a handbook of horticulture. Gardening; Horticulture. THE BOOK OF GARDENING. its deeply trilobed petals,, those of elegans being entire. The typical flower is deep rose-coloured, but plants now exist with flowers varying from pure white to dark purple, some being single, others double. All are exceedingly showy, and should be grouped in mixed borders where their bright colours will be highly appre- ciated. As cut flowers, they are also in great demand. Collinsia.—C. bicolor (Fig. 117) is a pretty, profuse-flowering plant, 1 ft. high, the upper lip of the corolla being w
. The Book of gardening; a handbook of horticulture. Gardening; Horticulture. THE BOOK OF GARDENING. its deeply trilobed petals,, those of elegans being entire. The typical flower is deep rose-coloured, but plants now exist with flowers varying from pure white to dark purple, some being single, others double. All are exceedingly showy, and should be grouped in mixed borders where their bright colours will be highly appre- ciated. As cut flowers, they are also in great demand. Collinsia.—C. bicolor (Fig. 117) is a pretty, profuse-flowering plant, 1 ft. high, the upper lip of the corolla being white, whilst the lower lip is of a purplish colour. It will stand smoke well, and consequently is very useful for growing in the neighbour- hood of large towns. The seed may be sown in autumn, and the plants protected slightly during severe weather in winter, when they will flower freely in May. If sown in March and April they will flower in about three months from the time of sowing. A white variety is also in cultivation under the name of alba or candidissimet: C. verna, a species growing 1 ft. high, and flowering early in' May, has white flowers, with the lower lip of a beautiful blue colour. Although this plant is so handsome, it is seldom seen in gardens, and very rarely met with in nurserymen's catalogues. It ought to be a plant very widely grown, seeing that it produces its flowers at a time when annuals are rather scarce. The length of time the display lasts—from six to eight weeks—ought also to reconv mend it as a plant worthy of a place in every garden. The seed must be sown in August or early in September in pans of light soil, and the seedlings, when large enough to be handled, should be pricked off into other pans or boxes, and kept cool and damp in a light airy position, so as not to force the growth, afterwards transferring to the open border in time to establish themselves before winter sets in. When treated in this manner they very often flower in April.
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