The Book of Roses. Francis ParkmanЧитать онлайн книгу.
the rose, and having carefully put in practice the methods found successful abroad, is enabled to judge with some confidence of the extent to which they are applicable here, and to point out exceptions and modifications demanded by the nature of our climate.
Among English writers on the rose, the best are Paul, Rivers, and more recently Cranston, together with the vivacious Mr. Radclyffe, a clergyman, a horticulturist, an excellent amateur of the rose, and a very amusing contributor to the "Florist." In France, Deslongchamps and several able contributors to the "Revue Horticole" are the most prominent. From these sources the writer of this book drew the instructions and hints which at first formed the basis of his practice; but he soon found that he must greatly modify it in accordance with American necessities. There was much to be added, much to be discarded, and much to be changed; and the results to which he arrived are given, as compactly as possible, in the following pages.
Jan. 1,1866.
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CHAPTER I. OPEN AIR CULTURE
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THE ROSE requires high culture. This belle of the parterre, this "queen of flowers," is a lover of rich fare, and refuses to put forth all her beauties on a meagre diet. Roses, indeed, will grow and bloom in any soil; but deficient nourishment will reduce the size of the flowers, and impair the perfection of their form. Of all soils, one of a sandy or gravelly nature is the worst; while, on the other hand, a wet and dense clay is scarcely better. A rich, strong, and somewhat heavy garden loam, abundantly manured, is the soil best adapted to all the strong-growing roses; while those of more delicate growth prefer one pro-portionably lighter.
Yet roses may be grown to perfection in any soil, if the needful pains are taken. We will suppose an extreme case: The grower wishes to plant a bed of roses on a spot where the soil is very poor and sandy. Let him mark out his bed, dig the soil to the depth of eighteen inches? throw out the worst portion of it, and substitute in its place a quantity of strong, heavy loam: rotted sods, if they can be had, will be an excellent addition; and so, also, will decayed leaves. Then add a liberal dressing of old stable manure: that taken from a last year's hot-bod will do admirably. It is scarcely possible to enrich too highly. One-fourth manure to three-fourths soil is not an excessive proportion. Now incorporate the whole thoroughly with a spade, level the top, and your bed is ready.
Again: we will suppose a case, equally bad, but of the opposite character. Here the soil is very wet, cold, and heavy. The first step is to drain it. This may be done thoroughly with tiles, after the approved methods; or, if this is too troublesome or expensive, simpler means may be used, which will, in most situations, prove as effectual. Dig a hole about five feet deep and four feet wide at the lower side of your intended bed of roses: in this hole place an inverted barrel, with the head knocked out; or, what is better, an old oil cask. In the latter case, a hole should be bored in it, near the top, to permit the air to escape. Fill the space around the cask or barrel with stones, and then cover the whole with earth. If your bed is of considerable extent, a drain, laid in stone or tile, should be made under or beside the bed, at the depth of three feet, and so constructed as to lead to the sunken barrel. Throw out, if necessary, a portion of the worst soil of the bed, substituting light loam, rotted leaves, and coarse gritty sand. Then add an abundance of old stable manure, as in the former case.
In the great majority of gardens, however, such pains are superfluous. Any good garden soil, deeply dug, and thoroughly enriched, will grow roses in perfection. Neither manure nor the spade should be spared. Three conditions are indispensable—sun, air, and exemption from the invasion of the roots of young growing trees. These last are insidious plunderers and thieves, which invade the soil, and rob its lawful occupants of the stores of nutriment provided for them.
A rose planted on the shady side of a grove of elm or maple trees is in one of the worst possible of situations. If, however, the situation is in other respects good, the evil of the invading roots may be cured for a time by digging a trench, three feet deep, between the trees and the bed of roses; thus cutting off the intruders. The trench may then be filled up immediately; but, if the trees are vigorous, it must be dug over again the following year. It is much better to choose, at the outset, an airy, sunny situation, at a reasonable distance from growing trees; but, at the same time, a spot exposed to violent winds should be avoided, as they are very injurious and exhausting.
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Roses may be planted either in spring or in autumn. In the Northern States, the severity of the winter demands some protection, when planted in autumn, for all except the old, hardy varieties. Plant as early as possible, that the roots may take some hold on the soil before winter closes. October, for this reason, is better than November. The best protection is earth heaped around the stem to the height of from six inches to a foot. Pine, cedar, or spruce boughs are also excellent. When earth alone is used, the top of the rose is often frost-killed; but this is usually of no consequence, the growth and bloom being only more vigorous for this natural pruning. Dry leaves heaped among or around the roses, and kept down by sticks or pieces of board, or by earth thrown on them, are also good protectors. In spring, plant as early as the soil is in working order; that is to say, as soon as it is dry enough not to adhere in lumps to the spade.
In planting, prune back the straggling roots with a sharp knife, but save as many of the small fibres as possible. If you plant in spring, prune back the stem at least half way to the ground; but, if you plant in autumn, by all means defer this operation till the winter is over. The ground around autumn-planted roses should be trodden down in the spring, since the plant will have been somewhat loosened in its place by the effect of frost; but this treading must not take place until the soil has become free from excessive moisture. Budded roses require a peculiar treatment in planting, which we shall describe when we come to speak of them.
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Next to soil and situation, pruning is the most important point of attention to the rose-grower. Long treatises have been written on it, describing in detail different modes applicable to different classes of roses, and confusing the amateur by a multitude of perplexing particulars.
One principle will cover most of the ground: Weaklygrowing roses should be severely pruned: those of vigorous growth should be pruned but little. Or, to speak more precisely, roses should be pruned in inverse proportion to the vigor of their growth.
Much, however, depends on the object at which the grower aims. If he wishes for a profusion of bloom, without regard to the size and perfection of individual flowers, then comparatively little pruning is required. If, on the other hand, he wishes for blooms of the greatest size and perfection, without regard to number, he will prune more closely.
The pruning of any tree or shrub at a time when vegetation is dormant acts as a stimulus to its vital powers. Hence, when it is naturally vigorous, it is urged by close pruning to such a degree of growth, that it has no leisure to bear flowers, developing instead a profusion of leaves and branches. The few flowers