قراءة كتاب Making a Garden of Perennials
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rectangular beds may be made, but against buildings or boundary lines, while the rear line may be comparatively straight, the front should be undulating, having long sweeping bays and promontories. No short curves should exist. They interfere with the lawn-mower. When it is desirable to face a boundary border with a walk, then, of course, the front line of a bed should be straight.
Some perennials require to be planted two feet apart, and in some, like peonies, three feet is close enough, for in time their tops will meet. Eighteen inches apart is enough to allow for the majority and some slender ones require but one foot. All this should be taken into consideration when determining the width of the bed.
Starting with the proposition that the average plant requires eighteen inches headroom, and that the first row may be planted six inches within the bed at the front—nine to twelve is better—and the second one back eighteen inches, and six from the back, we find that with rows two plants deep it requires a bed two feet and a half in width. This should be the narrowest allowance you should make. In a four-foot bed you can place them three deep, and one five and a half takes four plants. In other words, you increase your width in jumps of eighteen inches at a time. While this is not actually necessary, it is best and applies only to the widest and narrowest points. The intervening curved lines will vary from this measurement but it makes no difference, because you do not plant in straight rows from back to front as one would cabbages.
In planting at boundary lines or at buildings, the taller ones should be used at the back, but the semi-tall ones—say three feet in height—should occasionally be brought well toward the front in order to avoid stiffness and to add irregularity to the general effect. If a house or fence is at the back, flowering vines like the Clematis paniculata, or C. flammula, or any annual flowering vine, may be used here and there. In detached beds which may be seen from all sides, the taller plants are set in the middle.
The effect is much better if you plant in groups of four, six, or more of one kind. It relieves the effect of spottiness. Plant in an irregular manner so as to avoid stiffness or lumpiness, and let one group run in behind another. If you plant large groups in a pear-shaped form with the narrow stem end slightly curved and let the larger end of the adjoining pear-shaped group run up to the narrow stem of its neighbor, you will produce the effect I suggest. The plants you buy, being small, if planted as suggested will not occupy all the ground the first year. These spaces may be carpeted with annuals for a year or so, or planted with gladioli, lilies or Hyacinth candicans.
I will not attempt to discuss the fighting and clashing of colors sometimes seen in plantings. The acknowledged head of the house—she who is probably the one who desires the flower border—is generally an authority on pleasing color combinations.
Securely staking tall-growing plants is necessary if one desires neatness and effectiveness in the garden. We care for a plant twelve months in the year for the benefit we derive from its short season of bloom, and to allow it, then, to be sprawled upon the ground by passing storms seems cruel. Broom handles and ash rods, half an inch in diameter, used by basket makers, may be obtained from dealers in broom material. Bamboo canes are useful, as well as the painted stakes sold by seed houses. The stakes should be forced well down into the soil. Often, in dry weather when the ground is hard, they are not driven down far enough and the first hard rain softens the soil around them, and, if a strong wind exists, the plant may topple over and carry the stake with it. In tying them don't hug them as you would a long-lost brother; give them some natural freedom. In large groups, place the stakes around them, three or four feet apart, and string from stake to stake, running cross strings through the plants or between them. A single large plant generally requires at least three stakes. Do it before they are broken down by storms, for once broken it is hard to make a good job of it, especially if left down for some time. Then the growing ends turn up for light and harden in that bent condition.
If you raise the perennials yourself it is best to grow them one year in a reserve bed, say in the vegetable garden, because but very few will bloom the first year from seed. Purchased plants should have blossoms the first year, as they are supposed to be one-year-old seedlings or are divisions of old plants. These may be set out in the first position upon arrival. Seedlings in the reserve bed may be planted in rows, each row a foot apart, and the plants six inches apart in the rows; thus planted, they take up but little room and in the early fall or next spring they may be removed to their permanent quarters.
In transplanting, be sure to expose the roots as little as possible to the sun or drying winds. When plants arrive with the started foliage looking wilted, sprinkle them overhead and set them in a shady sheltered position for a while—say an hour. This will generally revive them enough to go on with your planting. If you have reason to suppose the plants were frosted in transit, set the box in a cool cellar over night. A gradual thawing out may rejuvenate them, while a sudden thawing is dangerous.
In planting, it often helps an amateur to take a few stakes and place one at each point he desires to set a plant. If you set six or more stakes, plant six or more plants, pulling up the stakes as you proceed to set out more. Make the holes in the bed wide enough to allow the roots to go in without crowding, and after filling in the soil, press it down firmly around the neck of the plant, and over the roots, and water well when all the bed is planted.
When dry, hot weather comes, and you think artificial watering necessary, soak the bed well and then let it alone for some time, although, in the evening, after a hot sunny day accompanied by a strong, drying wind, if the foliage looks wilted somewhat, a showering overhead is beneficial. The day after a good soaking it is well to go lightly over the bed with a hoe or rake and stir up the soil, breaking the crust produced by the watering. This makes a mulch that will conserve the moisture and protect the roots from the hot sun. Frequent slight waterings keep the moisture at the top and the roots are then inclined to grow upwards to meet it. If you then neglect to water, the soil soon becomes dry and the roots suffer.
WINTER MULCHING
When winter approaches, if you desire tidiness, cut the tops down (except evergreen-foliaged plants) even if the frost has not already done this work for you, and cover the bed with well-rotted manure, but it is really better to allow the tops to remain all winter, especially in the case of hollow-stemmed plants. Well-decayed manure needs but little going over in the spring, requiring only the removal of the foreign material and the straw chaff it may contain. What remains is generally the color of the soil, thus unnoticeable and acts as a mulch during the summer. Fresh manure may be used—in fact it is better, because the plants receive the benefit of the leachings, which is pretty well spent in old manure. In large grounds there is, however, considerable labor attached to the removal of this fertilizer in the spring, as it must be taken away for neatness' sake. While this manure has the greater part of its strength leached out, it is well worth saving for the humus still in it, and it may be dug in in the