A correspondent of the Gardeners' Chronicle says:

" Sow about fifty seeds in a 5 inch pot, place in a good bottom-heat, and they will vegetate in two or three weeks. In a month or so from the time of sowing prick the young plants out in 5-inch pots, a dozen in a pot; plunge again in bottom-heat, and they will form strong plants by the end of the season. It is very important that the plants be grown well, as it makes all the difference as to the time of flowering. A very large proportion of the plants have to be thrown away when they have flowered, therefore it is desirable to get them into flower as soon as possible. I have obtained flowers in nineteen months, but many plants will take a year longer, and some will not flower until the third year. They get very little rest with us until they do flower; the first winter they are kept continually in a growing state, and the second winter nearly so.