If we resolve that no annual manuring or digging is to be permitted, nobody will grudge a thorough preparation at first. When a plantation of shrubs is quite young it is well to keep the ground open by lightly stirring it for a year or two. Then the planting should be so arranged as to defeat the digger. To graduate the vegetation from the taller subjects behind to the very margin of the grass is of much importance, and this could be done best by the greater use of dwarf evergreens. Happily, there is quite enough of these to be had suitable for every soil. Light, moist, peaty, or sandy soils, where such things as the sweet–scented Daphne Cneorum would spread forth its dwarf cushions, would be somewhat more desirable than, say, a stiff clay; but for every position suitable plants might be found. Look, for example, at what we could do with the dwarf–green Iberises, Helianthemums, Aubrietias, Arabises, Alyssums, dwarf shrubs, and little conifers like the creeping Cedar (Juniperus squamata), and the Tamarix–leaved Juniper, in spreading groups and colonies. All these are green, and would spread out into dense wide cushions, covering the margin, rising but little above the grass, and helping to cut off the formal line which usually divides margin and border. Behind them we might use other shrubs, deciduous or evergreen, in endless variety; and of course the margin should be varied also as regards height.
In one spot we might have a wide–spreading tuft of the prostrate Savin pushing its graceful evergreen branchlets out over the grass; in another the dwarf little Cotoneasters might be allowed to form the front rank, relieved in their turn by pegged–down Roses; and so on without end. Herbaceous plants, that die down in winter and leave the ground bare afterwards, should not be assigned any important position near the front. Evergreen Alpine plants and shrubs, as before remarked, are perfectly suitable here; but the true herbaceous type, and the larger bulbs, like Lilies, should be in groups between spreading shrubs. By so placing them, we should not only secure a far more satisfactory general effect, but highly improve the aspect of the herbaceous plants themselves. To carry out such planting properly, a little more time at first and a great deal more taste than are now employed would be required; but what a difference in the result! All that the well–covered borders would require would be an occasional weeding or thinning, and, in the case of the more select spots, a little top–dressing with fine soil. Here and there, between and amongst the plants, such things as Forget–me–nots and Violets, Snowdrops and Primroses, might be scattered about, so as to give the borders interest even at the dullest seasons; and thus we should be delivered from digging and dreariness, and see our once ugly borders alive with flowers. The chief rule should be—never show the naked earth: clothe it, and then allow the taller plants to rise in their own way through the turf or spray. Here is a little sketch of what is meant. A colony of the white Arabis carpets the ground in which strong hardy Lilies are growing; and the Lilies are pushing up their bold unfolding shoots. The latter are none the worse in winter for this light carpet of foliage over the border; and then for a long time in spring it is bedecked with white flowers. Indeed, in fairly good seasons it blooms in winter too. It would take a big book to tell all the charms and merits belonging to the use of a variety of small plants to carpet the ground beneath and between those of larger growth. It need hardly be said that this argument against digging applies to two or three beds of shrubs, and places where the “shrubbery” is little larger than the dining–room, as much as to the large country seat, public park, or botanic garden.
Lilies coming up through carpet of White Arabis.
There are great cultural advantages too, in leaving the whole of the leaves to nourish the ground and protect it from frost or heat. I append a note from a correspondent inquiring about what he supposes practical difficulties, and an answer to them:—
You draw a pretty picture of what a shrubbery border should be and how it should be kept in winter. There should be no digging, and the fallen leaves should be left. I fully agree, except as to the leaves. Theoretically, it seems quite right to allow the leaves to lie and decay amidst the surrounding plants, but in practice it does not answer. There are, for instance, in most gardens such things as slugs and snails. These delight in a leafy covering, and, protected from frost by the shelter, will prey upon the perennial green leafage and the starting crowns of the herbaceous plants, and do an immense amount of mischief. Then there are usually in gardens in winter, especially in hard weather, blackbirds and thrushes, which in their efforts to obtain food set all notions of tidiness at defiance. A troop of fowls would hardly turn a flower border more topsy–turvy than would a few of these birds. The first storm that came would whirl the disturbed leaves all over the place, much to the disgust of the cultivator, and the hardy plants would find that the theory of a natural dressing of leaf manure had broken down. I detest the forking of borders so common in winter. A moderate stirring of the surface first with a two or three–tined rake is good, then a dressing of soot or guano, or both, and over all a thin surfacing of old pot soil, or the rough screened produce of the rubbish heap, or, in fact, any kind of refuse soil that may offer. I think that most cultivators will agree that such a plan would answer better than the natural, but very inoperative leaf–dressing.—A.