Growing Stocks in the Greenhouse
Few gardeners seem to grow stocks in theirbut they are excellent for a cool greenhouse in late winter. The Beauty of Nice type are particularly recommended for cultivation under glass and they are available with rose, Pink, Violet, salmon and white . There are also varieties which, if one selects only the lighter coloured seedlings, will produce entirely double flowers.
The seed is best sown in September or October in pots or boxes filled with seed compost and stood in a shaded cold frame until germination takes place.
When the resulting seedlings can be safely handled they should be pricked out into boxes of John Innes No. 1 Potting Compost and placed in a frame where they will have cool, airy conditions. Before colder weather arrives they should be taken into a greenhouse with a temperature of about 7°C. (45°F.) but if circumstances dictate they can be overwintered in a cold frame, provided they are protected from severe frost. Cool treatment and plenty of light are essential at all times.
Young plants can be put first into 3-in. pots and later moved into 5-in. pots filled with John Innes No. 2 Potting Compost.
During the winter they must be kept in a light place and the roof ventilators should be opened a little whenever possible to avoid damp and stuffy conditions.
Watering and Feeding
Water must be given sparingly in winter and only when theis dry, for if over wet. The plants will damp off. Start feeding the plants once a week at the end of January, using a liquid or soluble fertiliser, and continue this until flowering begins.