Arboretum

“ In this more general respect, an arboretum or woodland affords shelter, improves local climate, renovates bad soils, conceals objects unpleasing to the eye, heightens the effect of what is agreeable and graceful, and adds value, artistic and other, to the landscape. What Loudon called the “gardenesque” school of landscape naturally makes particular use of trees. By common consent the arboretum in the Royal Botanical Gardens at Kew is one of the finest in the world. ”

“ A part of the arboretum is more particularly devoted to this kind of decoration, and will eventually form a very wild wood and wild garden, where the Poet’s Narcissus may be found among Sweet Briers, Lilacs, and many kinds of fragrant–flowering shrubs and vigorous perennials. While carrying out the scheme of wild gardening, pure and simple, that is to say, the naturalisation of foreign hardy plants, opportunity has been taken to establish beautiful native kinds where they do not happen to be present in sufficient abundance. ”

“ An arboretum is a collection of trees and shrubs, [Pg 224] in which all the different species of natural order are planted together; and it does not necessarily imply that these orders should be arranged in any particular manner; as indeed botanists are not agreed as to how they should be placed, Jussieu having adopted one plan, De Candolle another, and Dr. Lindley another. The only essential point is, that all the plants which agree sufficiently to form an order should be placed together ”

“ And, lastly, we get a spreading forest tree equalling the red pine in height. At certain times of the year the bark peels off, and then the Temple columns are splashed with crimson and scarlet—wonderfully beautiful.
Surely it is this continual finding of surprises that make one’s progress through the bush so fascinating? Everywhere one sees those strange black ropes, jointed and polished, hanging from the roof in straight lines, or tying tree to tree, twisting and coiling, with neither beginning nor end that one can find. ”

“ No one ever sees the full charm of the forest who turns his back upon it in the winter, for its clear-cut tree-forms are an unceasing delight and wonder. Look at the exquisite lines of that drooping birch, the intricate interlacing tracery of the minute branching twigs! Could anything be more graceful or more chaste? could any covering of leaves enhance its beauty? And so the apple-tree by the old stone wall—how different its various angles! how individual in its character! how beautiful its silhouette against the sky! Thus every separate tree affords a perfect study, of infinite design. ”

“ The greater part of the breadth is occupied by the zone of the forest, the willow brakes, and the shrubbery of the bank—I find myself hunting for a word which will more perfectly fix and define this wonderful terrain than the word wood, and yet I am unable to find one. There can be no talk of a wood in the usual sense of the term—a kind of great pillared grove with moss and strewn leafage and tree-trunks of fairly uniform girth. The trees in our hunting-grounds are of different ages and circumference. ”

“ From these frosty Arctic sky gardens you may descend in one straight swoop to the abronia, mentzelia, and œnothera gardens of Mono, where the sunshine is warm enough for palms.
But the greatest of all the gardens is the belt of forest trees, profusely covered in the spring with blue and purple, red and yellow blossoms, each tree with a gigantic panicle of flowers fifty to a hundred feet long. Yet strange to say they are seldom noticed. Few travel through the woods when they are in bloom, the flowers of some of the showiest species opening before the snow is off the ground. ”

“ As you approach the Arctic circle, it becomes the characteristic tree. Then it appears in extensive forests, lending their picturesque shelter to the snowy desolation of the earth. One species of pine is the very last tree that disappears as the traveller, in approaching the pole, takes his leave of the limits of vegetation. This species is the “white spruce” the very one which, along with the birch-tree, had been pointed out by Norman to his companions. ”

“ Contrasts arise, again, from the mixture of trees of unequal growth, from a young tree united with an old one, a stunted tree with a luxuriant one, and sometimes from two or three trees, which in themselves are ill-shaped, but when combined are pleasing. Inequalities of all these kinds are what chiefly give nature's planting a superiority over art.
The form of the foliage is another source of contrast. In one part, where the branches intermingle, the foliage will be interwoven and close; in another, where the boughs of each tree hang separately, the appearance will be light and easy. ”

“ Many trees depend more on the air than soil [167] for sustenance. Cut a tree, and it will probably remain green and throw off new branches. Then further up one will see the green roof composed of the matted leaves and vines, which almost exclude the light from the ground below. Some of the largest trees spread over the others a wide, thick roof of verdure, like a vast umbrella. The mighty columnar stems, which bear aloft this solid roof of lofty green, would make the proudest of earth’s beings feel awed and humbled. The visitor to these forests feels his own insignificance. ”

“ But we must not remain among the Big Trees, for the forests extend much farther up the mountains. The most important tree of the upper forest belt is the fir, which is found growing from five thousand to nearly nine thousand feet above sea-level. It is one of the most graceful of the conifers. Sometimes these trees reach a height of two hundred and fifty feet and form dense forests with little undergrowth. The branches make the soft, fragrant beds which so rest and delight the tired mountain climber. ”

“ In the autumn the same surprise awaits us, when under a towering tree with yellow or russet foliage, the dogwood leaps up like a scarlet flame, against its dark background, holding straight out its platformed branches of red leaves, tipped with berries, like rubies, set on the upturned twigs.
Often the trees are stripped by birds before the berries are ripe. It is in woods where the trees are numerous that we shall find the fruit reaching its perfection of ripeness and colour. ”

“ The same general causes have led to the filling up of every place in nature with some specially adapted form. Thus we find a forest of smaller trees adapted to grow in the shade of greater trees. Thus we find every tree supporting numerous other forms of vegetation, and some so crowded with epiphytes of various kinds that their forks and horizontal branches are veritable gardens. Creeping ferns and arums run up the smoothest trunks; an immense variety of climbers hang in tangled masses from the branches and mount over [p. 67] the highest tree-tops. ”

“ Some, under the influence of better soil or more light, have done better than others; but they are all sound and stately trees, and together represent the best product of the forest. Long ago other trees that grew in their midst, but were less promising, were removed for the sake of these. Under their continuous roof of foliage [Pg 160] there is a cool, deep shade. The ground is scattered with fern, or covered with deep beds of leaves, or with the glossy needles of the conifers. ”

“ Its limbs and branches divide in harmonious proportions, reaching out as if conscious of their strength, and yet with sufficient gracefulness to lend dignity to the tree. The lower boughs, especially, are inclined to assume an elegant sweep, deflecting sidewise to the earth, and ending with an upward curve and a droop at the outer extremity. Often the crowded environment of the forest does not admit of such ample development ”

“ Trees of eight feet diameter are at least three hundred years old, and rare ones, much larger, have been cut showing an age of more than five centuries.
To these areas of the greatest trees must come all who would know the real spirit of the forest, at once beneficent and ruthless. Here nature selects the fittest. The struggle for soil below and light above is relentless. The weakling, crowded and overshadowed, inevitably deepens the forest floor with its fallen trunk, adding to the humus that covers the lavas, and nourishing in its decay the more fortunate rival that has robbed it of life. ”

“ A plant with a single trunk of woody structure that does not branch for some distance above the ground, is called a tree. Woody plants that branch directly above the soil, even though they grow to the height of twenty feet or more, are called shrubs, or, in popular language, bushes. Many plants which have a tendency to grow into the form of shrubs may, by pruning, be forced to grow tree-like ”

“ First the elastic tops of the arches begin to appear, then one branch after another, each springing loose with a gentle rustling sound, and at length the whole tree, with the assistance of the winds, gradually unbends and rises and settles back into its place in the warm air, as dry and feathery and fresh as young ferns just out of the coil. ”

“ But in some places the pocket of soil is small; wherefore the roots of the pine cannot spread, and the tree becomes a dwarf, gnarled and picturesque. Again, on the hillsides the rich soil makes great trees grow, with rich shrubbery and verdure beneath them. The torrent completes the landscape effect by sculpturing the rocks into fascinating forms. In that combination you have every element required. Reproduce it in miniature, and your garden is made. ”

“ Leaving the road behind, therefore, and heading still eastward, you cross a ridge where the hardwoods stand, as their ancestors stood, untouched by the tools of men. Immense trunks of beech or sugar-maple or yellow birch tower upward wide apart, the moss of centuries upon them; far overhead is a delicate tracery of leaves, a dance of light against the blue, and over all is the blessed silence. ”

“ Even when dying, its foliage takes on the earliest and richest hues of autumn.
The trees about our door become in a sense our companions. They appeal to the eye, fancy, and feelings of different people differently. Therefore I shall leave the choice of arboreal associates to those who are to plant them—a choice best guided by observation of trees. Why should you not plant those you like the best, those which are the most congenial? ”

“ The observer is also impressed by the character of the foliage. The leaves are usually rather blunt and ponderous, varying a little—as, indeed, do those of several other trees [Pg 8] —according to the nature of their environment. They clothe the tree in profusion, but do not hide the beauty of the ramification of its branches. In truth, they are not devoid of beauty themselves. ”

“ Many an ugly ravine is clothed with verdure and whitened with nectar-laden flowers by this comparatively worthless, short-lived tree; and in many burnt-over districts, the bird-sown pits strike root, and the young trees render a distinct service to forestry by this young growth, which is gone by the time the pines and hardwoods it has nursed require the ground for their spreading roots. ”

“ In other portions of the grounds the stone pines lift their dense clumps of branches upon a slender length of stem, so high that they look like green islands in the air, flinging down a shadow upon the turf so far off that you scarcely know which tree has made it. ”

“ It is under the supervision of these educated foresters and trained wood-rangers that, on the mountain-side, apparently but a forbidding rock, by constant, careful, and scientific attention, are found oak-, beech-, birch-, and pine-trees in large quantities and of good dimensions. Each tree is carefully looked after and preserved, and trained so that they shall not interfere with each other; each has its fair share of space and light. ”

“ Where trees are exposed to strong winds, they develop deep and strong root systems. They produce large and strong trunks that can bend and resist violent winds which sway and twist them in every direction. Such trees are much stronger and sturdier than those that grow in a sheltered forest. The trees that are blown down in the forest provide space for the introduction and growth of new varieties. These activities are constantly changing the type of tree growth in the forest. ”

“ Sweet flowers grow beside the fallen trees, among the shattered branches, the season through; and the freedom of the woods, the unchecked growth, the careless position of every tree, are favorable to a thousand wild beauties, and fantastic forms, opening to the mind a play of fancy which is in itself cheering and enlivening, like the bright sunbeams which chequer with golden light the shadowy groves. ”

“ A close inspection also will discover curious creepers and climbers; and among the branches strange orchids hide their eccentric flowers. But the outward type of tree is the same as we have at home—trees resembling the ash, the beech, and the elm, only seldom so large, except by the streams, and never so beautiful. ”

“ The sighing of the wind alone is heard among their sapless branches.
Thus much we know, that in all forest-trees the stages of vegetation are alike. But century after century must have rolled on, till the giant bulk of the noble trees were fully developed, till their stately columns, upheld an ample canopy of spreading boughs, beneath which the flocks that grazed in the open spaces of the forest might find a shelter from the storm. ”

“ They are not made of dwarf trees. There are little woods, as well as big woods, of oak, elm, ash, pine, willow, birch, beech, and larch. In some cases the little woods are composed of the growth which shoots up when the principal trunk of the tree has been cut down, but they are generally little merely because they are young, and are cut down for use before they have time to grow into forest-trees. ”

“ This hardy tree occupies fully as wide a range, both of soil and climate, as the oak, and is generally the fastest growing, most vigorous of all our hard-wood kinds, prospering on all soils, on the dry and moist, the aluminous, the calcareous, the siliceous, provided water does not stagnate. ”