As I have been very successful in growing this favourite plant, a few remarks as to my mode of culture may not be out of place in the pages of ' The Gardener,' to such of your amateur and lady readers as may cultivate this sweet-scented flower. The only variety I have grown this season is Miles' Hybrid Spiral, which is quite an acquisition for pot-culture, the spikes being much larger and the flowers more fragrant than any other variety I have hitherto cultivated in pots. To have a succession of blooms, the seeds should be sown at intervals of a month or six weeks, from April to September. Prepare a few 3-inch pots by cleaning and draining them well: fill them with a compost of light loam, leaf-mould, and sand in a fine state, and sow a few seeds in the centre of each, not all in a heap, but scattered thinly over an inch or two of the surface, and cover lightly with some of the finest of the soil, and place them in a warm pit or house where they can enjoy a temperature ranging from 50° in the night to 60° in the day, after which water with a fine-rosed watering-pan, and cover them with a circular piece of glass, which helps to retain the moisture and keeps up a more equable temperature.

As soon as the young plants appear above the soil, tilt the glass at one side by inserting a tally or small piece of wood between the rim of the pot and the glass, and gradually inure the plants to the genial atmosphere of the pit or house. As soon as it can be distinguished which are the strongest plants, remove all the others, and let the strong ones take full possession of the pots. They will soon gain size and strength, and require a shift into larger pots, using stronger soil, such as good turfy loam, leaf-mould, and thoroughly-decomposed cow-dung, with a dash of sand, and charcoal broken up into small bits, to keep the soil free and open. Pot rather firmly, and shade for a few days until the roots take to the fresh soil, after which they will grow away vigorously, and must be carefully attended to as regards watering and airing, so that they receive no check. The shoots will require to be supported with small neat stakes, and pinched to secure a dwarf branching habit to those which are to be grown as pyramids. "We always retain some of the strongest for umbrella-shaped trellises, which are very suitable for standing on the corners of the stages in the greenhouse.

This mode of training is easily accomplished by keeping the leading shoot tied to a stake, and rubbing off all lateral growths as they appear from time to time, till it reaches the height of the wire. Then pinch out the point to form the "head of the tree," and tie down the branches to the wire as they grow, bringing them down gently, as they are apt to break off at the heel. As the plants advance in growth they will require another shift into 9 or 10 inch pots, which is large enough to flower them in; and if the flowers are pinched off as they appear for a time, this will generally produce enough breaks to fill the whole trellis. "We prefer a few strong branches thinly distributed over the trellis-work to a thick mass of weaker ones, as the vigorous shoots produce larger and better spikes of bloom. Plants having the greatest tendency to branch should be trained as pyramids, and staked and tied out as they advance in growth, till they are required for cutting from or for decorative purposes. In cutting it is well to take the oldest spikes first, as they are apt to form seeds, which greatly reduces the vigour of the plants; and also, to put fresh vigour in them, water occasionally with weak liquid-manure water made from cow-dung and soot, and make it a point never to let them become too dry.

After the earliest-sown plants are well advanced they can be carefully hardened off, and grown in a cool sheltered place out of doors, and taken in again, about the middle or end of September, to a warm pit or greenhouse, where they will flower for a long time, and will repay the care and attention that have been given them throughout the summer. In cold exposed situations, where the weather is very changeable, it is better to keep them in a cool frame all summer, and shade them when the sun is very strong; or place the frame in a shady position, and ply the syringe amongst them in the afternoon in fine dry weather, to keep up a moist growing atmosphere.

DUNDONIAN.