Vegetables




CLARKIA

C. elegans. C. pulchella. Hardy annuals The two distinct classes of Clarkia named above include several varieties that have long been freely grown in gardens as summer annuals. But the very beautiful recent introductions in the Elegans class have lifted these flowers to a



higher plane of usefulness for producing brilliant sheets of colour in beds, borders, shrubberies, and beside carriage drives. Although all the Clarkias bloom profusely in ordinary garden soil they well repay liberal treatment. Seed may be sown from March to May, or in September if an early display is wanted. In good ground each plant of the Pulchella varieties should be allowed a space of eight or ten inches, but rather more room must be given to the Elegans class to do the plants justice. The Elegans varieties are of special value when treated as pot plants for conservatory decoration in May and June. From seed sown in August or early in September the plants can be slowly grown into magnificent specimens four feet high and almost as much in diameter. Our own practice is to sow thinly in clean well-drained 48-size pots. These are placed in a temperature of from 50 deg. to 55 deg., and when the seedlings are large enough to handle they are pricked off into shallow boxes about three inches apart, the base of the boxes being freely perforated to insure ample drainage. The most suitable soil is composed of equal parts of sound loam and leaf-mould, with the addition of a gallon of coarse sand to each bushel of the mixed soil. After the plants are well established, ventilate freely to secure robust growth. When three inches high pinch out the points, and a little later transfer separately to small pots, keeping them close for a few days and as near the glass as possible. As the roots develop, transfer again to larger pots, and then the second and final stopping of the shoots must be done. Should very large plants be wanted they can be flowered in 16-size pots, using a compost slightly heavier than that advised at a younger stage of growth. The night temperature during winter should be about 45º, giving air freely by day whenever possible to do so with safety. As the branches need support, sticks of a suitable length must be provided, and the stems tied out in good time to prevent them from breaking off.





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