The Gardeners' Chronicle. ser. 3. 26: 299 (Oct 14, 1899)


Having written on p. 250 respecting budding Maréchal Niel on Devonienisis, I will now give my experience of "inarching." The plants of which I write are planted in a span-roofed Peach-house 60 feet long and 14 feet wide, running east to west. Three plants of Maréchal Niel and one of Devoniensis alternate with the Peach-trees on the south side, to fill up the space until the Peaches are over. But the Roses have proved to be by far the most valuable crop. Each grew vigorously and yielded good blooms; the four plants covered the whole south front in three years, and two of them covered part of the north side. These were layered in the border after cutting the bark through at a joint; but only one, after seven years, is to-day free from canker, and it covers nearly half of the house. One of them showed canker at the end of two years, but from what cause 1 cannot conceive. Knowing what would follow, and not wishing to lose all the good flowers from this plant another year (cankered plants always produce small flowers), inarched the end of a long shoot into the main stem of a plant of the Devoniensis Rose, and in April it was in bloom. The method of procedure with the task is the same as that of budding; a T-shaped cut is made in the bark, and the scion cut sloping and slipped in this cut. These were merely tied with strong matting. The sloping cut of the scion must, of course, be made immediately under an eye, or, as with me, a flowering bud. Union was soon complete, and on cutting back the flowering shoot, a long growth as thick as one's little finger was produced the same year, followed next season by one as thick as one's thumb, and 15 feet in length. which produced the largest blooms of Maréchal Niel I have ever placed on the market. But to return to the long growth inarched. After the blooms were cut and each shoot pruned close to the stem, it broke again freely and strongly; the shoots were thinned out, leaving only one, as is done in Vines. It soon became evident from what source the extra strength came, as the wounds caused by bruising healed over from the side next the Devoniensis. and all growths drew away from the point inarched. This led me to sever the whole length from the cankered plant, and mother Devoniensis never even allowed it to flag. The vigorous growth today shows there is no canker or lack of vitality. This one plant, by means of inarching and budding, now covers a great deal of space. and is doing the work of three plants, so thoroughly in harmony are M. Niel and Devoniensis. Unite them when and how you will in the growing season, vigorous growths will result. For instance, a long length of Devoniensis growing from the right, and carrying different coloured flowers, and a M. Niel from the left are united where they meet. When the union is complete, the stem of M. Niel is severed above the canker, and inarched on another growing length of Devoniensis; the sap flows freely through M. Niel and Devoniensis alike, as if its course was not altered. Now M. Niel inarched on W. A. Richardson is very different. Two plants are growing opposite to each other in a span-roofed house, each makes for the ridge; the M. Niel grows the quicker, and meets the other about half way up the rafter on the other side. By inarching they are united; but instead of flowers increasing in size, they are smaller for the union; nor is the growth so sturdy. The Maréchal Niel roots are cankered, but with the assistance of W. A. Richardson it affords a good many dozens of blooms of a good tint in the springtime, and flowers a second time in August. The Gloire de Dijon Rose, good as it is to bloom, is of no use for sale. This variety has been worked upon and with different Roses, but with little success, except in the case of M. Niel, which grows liberally, and produces fair blooms. But it requires to be cut severely after flowering each year, or the flowers are small. Duke of Edinburgh upon Gloire de Dijon has not moved at all, though it is as fresh as when inserted five years ago. The old variety of Niphetos does well on this variety at Parkstone Nurseries near here. Let me tell "Growler" this may not be new to him and many others, but I have been persuaded to write the above for the benefit of a few Rose-growers, who, like myself, have had canker destroy their Maréchal Niels just when they have covered the space allotted to them.— K. W.