Then comes the archway, flanked by thick buttresses. A Choisya was planted just beyond each of these, but it has grown wide and high, spreading across the face of the buttress on each side, and considerably invading the pathway. There is no better shrub here than this delightful Mexican plant; its long whippy roots ramble through our light soil with every sign of enjoyment; it always looks clean and healthy and well dressed, and as for its lovely and deliciously sweet flowers, we cut them by the bushel, and almost by the faggot, and the bushes scarcely look any the emptier.
Beyond the archway comes the shorter length of wall and border. For convenience I planted all slightly tender things together on this bit of wall and border; then we make one job of covering the whole with fir-boughs for protection in winter. On the wall are Piptanthus nepalensis, Cistus ladaniferus, Edwardsia grandiflora, and another Loquat, and in the border a number of Hydrangeas, Clerodendron fœtidum, Crinums, and Nandina domestica, the Chinese so-called sacred Bamboo. It is not a Bamboo at all, but allied to Berberis; the Chinese plant it for good luck near their houses. If it is as lucky as it is pretty, it ought to do one good! I first made acquaintance with this beautiful plant in Canon Ellacombe's most interesting garden at Bitton, in Gloucestershire, where it struck me as one of the most beautiful growing things I had ever seen, the beauty being mostly in the form and colouring of the leaves. It is not perhaps a plant for everybody, and barely hardly; it seems slow to get hold, and its full beauty only shows when it is well established, and throws up its wonderfully-coloured leaves on tall bamboo-like stalks.
There is nothing much more difficult to do in outdoor gardening than to plant a mixed border well, and to keep it in beauty throughout the summer. Every year, as I gain more experience, and, I hope, more power of critical judgment, I find myself tending towards broader and simpler effects, both of grouping and colour. I do not know whether it is by individual preference, or in obedience to some colour-law that I can instinctively feel but cannot pretend even to understand, and much less to explain, but in practice I always find more satisfaction and facility in treating the warm colours (reds and yellows) in graduated harmonies, culminating into gorgeousness, and the cool ones in contrasts; especially in the case of blue, which I like to use either in distinct but not garish contrasts, as of full blue with pale yellow, or in separate cloud-like harmonies, as of lilac and pale purple with grey foliage. I am never so much inclined to treat the blues, purples, and lilacs in gradations together as I am the reds and yellows. Purples and lilacs I can put together, but not these with blues; and the pure blues always seem to demand peculiar and very careful treatment.
The western end of the flower-border begins with the low bank of Yuccas, then there are some rather large masses of important grey and glaucous foliage and pale and full pink flower. The foliage is mostly of the Globe Artichoke, and nearer the front of Artemisia and Cineraria maritima. Among this, pink Canterbury Bell, Hollyhock, Phlox, Gladiolus, and Japan Anemone, all in pink colourings, will follow one another in due succession. Then come some groups of plants bearing whitish and very pale flowers, Polygonum compactum, Aconitum lycoctonum, Double Meadowsweet, and other Spiræas, and then the colour passes to pale yellow of Mulleins, and with them the palest blue Delphiniums. Towards the front is a wide planting of Iris pallida dalmatica, its handsome bluish foliage showing as outstanding and yet related masses with regard to the first large group of pale foliage. Then comes the pale-yellow Iris flavescens, and meanwhile the group of Delphinium deepens into those of a fuller blue colour, though none of the darkest are here. Then more pale yellow of Mullein, Thalictrum, and Paris Daisy, and so the colour passes to stronger yellows. These change into orange, and from that to brightest scarlet and crimson, coming to the fullest strength in the Oriental Poppies of the earlier year, and later in Lychnis, Gladiolus, Scarlet Dahlia, and Tritoma. The colour-scheme then passes again through orange and yellow to the paler yellows, and so again to blue and warm white, where it meets one of the clumps of Yuccas flanking the path that divides this longer part of the border from the much shorter piece beyond. This simple procession of colour arrangement has occupied a space of a hundred and sixty feet, and the border is all the better for it.
The short length of border beyond the gateway has again Yuccas and important pale foliage, and a preponderance of pink bloom, Hydrangea for the most part; but there are a few tall Mulleins, whose pale-yellow flowers group well with the ivory of the Yucca spikes and the clear pink of the tall Hollyhocks. These all show up well over the masses of grey and glaucous foliage, and against the rich darkness of dusky Yew.
Dahlias and Cannas have their places in the mixed border. When it is being dismantled in the late autumn all bare places are well dug and enriched, so that when it comes to filling-up time, at the end of May, I know that every spare bit of space is ready and at the time of preparation I mark places for special Dahlias, according to colour, and for groups of the tall Cannas where I want grand foliage.
There are certain classes of plants that are quite indispensable, but that leave a bare or shabby-looking place when their bloom is over. How to cover these places is one of the problems that have to be solved. The worst offender is Oriental Poppy; it becomes unsightly soon after blooming, and is quite gone by midsummer. I therefore plant Gypsophila paniculata between and behind the Poppy groups, and by July there is a delicate cloud of bloom instead of large bare patches. Eryngium Oliverianum has turned brown by the beginning of July, but around the group some Dahlias have been planted, that will be gradually trained down over the space of the departed Sea-Holly, and other Dahlias are used in the same way to mask various weak places.
There is a perennial Sunflower, with tall black stems, and pale-yellow flowers quite at the top, an old garden sort, but not very good as usually grown; this I find of great value to train down, when it throws up a short flowering stem from each joint, and becomes a spreading sheet of bloom.
One would rather not have to resort to these artifices of sticking and training; but if a certain effect is wanted, all such means are lawful, provided that nothing looks stiff or strained or unsightly; and it is pleasant to exercise ingenuity and to invent ways to meet the needs of any case that may arise. But like everything else, in good gardening it must be done just right, and the artist-gardener finds that hardly the placing of a single plant can be deputed to any other hand than his own; for though, when it is done, it looks quite simple and easy, he must paint his own picture himself—no one can paint it for him.
I have no dogmatic views about having in the so-called hardy flower-border none but hardy flowers. All flowers are welcome that are right in colour, and that make a brave show where a brave show is wanted. It is of more importance that the border should be handsome than that all its occupants should be hardy. Therefore I prepare a certain useful lot of half-hardy annuals, and a few of what have come to be called bedding-plants. I like to vary them a little from year to year, because in no one season can I get in all the good flowers that I should like to grow; and I think it better to leave out some one year and have them the next, than to crowd any up, or to find I have plants to put out and no space to put them in. But I nearly always grow these half-hardy annuals; orange African Marigold, French Marigold, sulphur Sunflower, orange and scarlet tall Zinnia, Nasturtiums, both dwarf and trailing, Nicotiana affinis, Maize, and Salpiglossis. Then Stocks and China Asters. The Stocks are always the large white and flesh-coloured summer kinds, and the Asters, the White Comet, and one of the blood-red or so-called scarlet sorts.