. The Book of gardening; a handbook of horticulture. Gardening; Horticulture. ON ANNUALS AND BIENNIALS. 223 whilst the lower one is white. These are suitable for growing in large patches, sowing the seed in March, and thinning the seedlings to a distance of 3m. Collomia coccinea is a showy border plant, varying in height from 12m. to i8in., and producing its bright scarlet flowers during June, July, and August. It is a useful bee- plant, and in light warm soils it sows itself every year, the plants so obtained being quite equal to the cultivated ones. Convolvulus tricolor (C. minor) (Dwarf Gar
. The Book of gardening; a handbook of horticulture. Gardening; Horticulture. ON ANNUALS AND BIENNIALS. 223 whilst the lower one is white. These are suitable for growing in large patches, sowing the seed in March, and thinning the seedlings to a distance of 3m. Collomia coccinea is a showy border plant, varying in height from 12m. to i8in., and producing its bright scarlet flowers during June, July, and August. It is a useful bee- plant, and in light warm soils it sows itself every year, the plants so obtained being quite equal to the cultivated ones. Convolvulus tricolor (C. minor) (Dwarf Garden Con- volvulus) is a well-known plant, ift. high, bearing numerous large richly-coloured flowers, which are white, with a blue limb and a yellowish throat. There are several varieties with white, rose, crimson, and blue flowers ; these are fine bedding plants and are also useful when grown in clumps in the border. They require a good warm soil, and should be kept in a medium ' moist condition. Coreopsis is a genus con- taining several annuals which are largely grown for summer decoration, under the name of Calliopsis; they are very grace- ful border plants, supplying, during summer an abundance of elegant showy flowers, which are .greatly appreciated for vases and bouquets. They thrive' almost anywhere, even in town gardens; and the bright colours of their flowers render them objects of remarkable beauty FlG- » Drummondi. and general garden favourites. Coreopsis Drummondi (Fig. 118) is a lovely plant for beds and borders; it has golden-yellow flowers, with a rich crimson- brown ring surrounding the eye; it is a much-branched species, growing i8in. in height, and flowering in July. Coreopsis tmctoria, also known as C. bicolor, is a slender annual, growing to a height of 2ft., and opening its flowers in June; they are yellow, with a crimson-brown blotch in the centre. Several varieties, differing in the colour of their flowers, are now grown, the best of which is
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