The Book of Roses

by Francis Parkman

In propagating roses from the ripe wood, the cuttings must be made early in autumn from wood of the same season's growth. The chances of success will be increased if they are taken off close to the old wood with what is called a "heel;" that is, with a very small portion of the old wood attached. The heel should be trimmed smooth with a sharp knife: the cuttings may be six or eight inches long. Strip off any leaves which may still adhere to them, and plant them in rows, at a depth of about five inches, in a cold frame. The soil should be very light, and thoroughly drained: water it, to settle it, around the cuttings. On the approach of frost, they should be protected with boards and mats, giving them air on fine days during winter. In the spring, a white cellular growth called a "callus" will have formed at the heel of each cutting, which, if the process succeeds, will soon emit roots, and become a plant.

Propagation in summer from the half-ripe wood is a better and less uncertain method. In June and July, immediately after the blossoms wither, and before the rose has begun its second growth, cuttings should be made of the flower-stems. Each cutting may contain two or three buds. The lower leaves must be taken off; but the upper leaves must remain. Trim off the stem smoothly with a sharp knife below the lowest bud, and as near to it as possible without injuring it.

If the cuttings are taken off with a heel, as above described, the chance of success will be greater. They may now be inserted at the depth of an inch and a half around the edge of a small pot filled one-third with broken crocks, and the remainder with a mixture of loam, leaf-mould, and sharp sand. Now place them in a frame on the shady side of a hedge or fence, water them to settle the soil, and cover them closely with glass. Sprinkle them lightly every morning and night; and, when moisture gathers on the inner surface of the glass, turn it over, placing the dry side inward. If mould or decay attacks the cuttings, wedge up the glass a little to give them air. In a week or two, they will form a callus; after which they may be removed to a gentle hot-bed, kept moderately close, and shaded from the direct sun. Here they will quickly strike root, and may be potted off singly into small pots.

Another mode of propagation, and a favorite one with nursery-men, is practised early in the spring. In this case, the cuttings are made from forced roses, or roses grown on greenhouse rafters. Some propagators prefer the wood in a very soft state, cutting it even before the flowers are expanded. The cuttings may be placed in pots as in the former case, or in shallow boxes or earthen pans thoroughly drained with broken crocks. The soil should be shallow enough to allow the heel of the cutting to touch the crocks. They are to be placed at once on a moderate bottom-heat, covered closely with glass, and shaded from the direct rays of the noontide sun. Their subsequent treatment is similar to that of summer cuttings. They must be closely watched, and those that show signs of mould or decay at once removed.

After the callus is formed, they will bear more air. When rooted, they should be potted into small pots, and placed on a hot-bed of which the heat is on the decline. Towards the end of May, when the earth is warmed by the sun, they may be turned out of the pots into the open ground, where they will soon make strong plants.

Many American nursery-men strike rose-cuttings in spring, in pure sand, over a hot-bed or a tank of hot water, in the close air of the propagating-house. They must be potted immediately on rooting, as the sand supplies them with nothing to subsist on. We have seen many hundreds rooted in this way with scarcely a single failure.

The management of difficult cuttings requires a certain tact, only to be gained by practice and observation; and the gardener who succeeds in rooting a pot of cuttings of the Moss Rose has some reason to be proud of his success.

With respect to the relative value of roses propagated by the methods above described, the most experienced cultivators are unanimous in the opinion, that those raised from layers and from cuttings of the ripe wood, without artificial heat, are superior in vigor and endurance to those raised from the half-ripe wood with the stimulus of a close heat. Unfortunately, the former method is so slow and uncertain when compared with the latter, that nurserymen rarely employ it to any great extent; and a good choice of roses on their own roots, raised without heat, is sometimes difficult to find.

The following is a mode of propagation not often practised, but which is well worthy of trial, as it is applicable to prunings which are usually thrown away. The extract is from the "Gardener's Chronicle."

"The rose is as easily propagated by means of buds or eyes as the vine. If your correspondent 'X' will take a strong shoot from almost any kind of rose in a dormant state, and with a sharp knife cut it into as many pieces as there are good eyes on the shoots, the pieces not being more than one inch long, taking care to have the eye in the centre of the piece, he will doubtless succeed. One-third of the wood should be cut clean off from end to end at the back of the eye, just as you would prepare a vine eye. In preparing the cutting-pans, it is most essential to put a good quantity of broken potsherds in the bottom, beginning with large pieces, and finishing with others more finely broken: then mix a quantity of good loam, leaf-soil, and sand, in equal proportions; rub it through a fine sieve, and fill the pans to within one inch of the top, pressing down the soil moderately firm. After that, put in the eyes in a leaning or slanting position, pressing them firmly into the soil with the thumb and finger; taking care to keep the thumb on the bottom end of the cutting, to prevent the bark from being injured. After the eyes are put in, give the pan two or three gentle raps on the bench; then put half an inch of silver or clean river sand on the top, water with a fine rose, and plunge the pans in a nice bottom heat of say sixty degrees, covering the surface over with moss to prevent the soil from getting dry: they will not require any more water for a week or ten days. The moss should be carefully removed as soon as the young shoots begin to push through the sand. In three weeks from that time, the roses will be fit for potting off into large sixty-sized pots. They should then be placed in a temperature of seventy degrees, when they will soon repay the care bestowed on them. I, however, prefer grafting on the Manetti stock. I grafted a lot in a dormant state seven weeks ago: they are now nice plants, and will be in bloom by May."—J. Willis, Oulton Park, Cheshire.