Even when a flower border is devoted to a special season, as mine is given to the time from mid-July to October, it cannot be kept fully furnished without resorting to various contrivances. One of these is the planting of certain things that will follow in season of bloom and that can be trained to take each other's places. Thus, each plant of Gypsophila paniculata when full grown covers a space a good four feet wide. On each side of it, within reasonable distance of the root, I plant Oriental Poppies. These make their leaf and flower growth in early summer when the Gypsophila is still in a young state. The Poppies will have died down by the time the Gypsophila is full grown and has covered them. After this has bloomed the seed-pods turn brown, and though a little of this colouring is not harmful in the autumn border, yet it is not wanted in such large patches. We therefore grow at its foot, or within easy reach, some of the trailing Nasturtiums and lead them up so that they cover the greater part of the brown seed-spray.
Delphiniums, which are indispensable for July, leave bare stems with quickly yellowing leafage when the flowers are over. We plant behind them the white Everlasting Pea, and again behind that Clematis Jackmanni. When the Delphiniums are over, the rapidly forming seed-pods are removed, the stems are cut down to just the right height, and the white Peas are trained over them. When the Peas go out of bloom in the middle of August, the Clematis is brought over. It takes some years for these two plants to become established; in the case of those I am describing the Pea has been four or five years planted and the Clematis seven. They cannot be hurried, indeed in my garden it is difficult to get the Clematis to grow at all. But good gardening means patience and dogged determination. There must be many failures and losses, but by always pushing on there will also be the reward of success. Those who do not know are apt to think that hardy flower gardening of the best kind is easy. It is not easy at all. It has taken me half a lifetime merely to find out what is best worth doing, and a good slice out of another half to puzzle out the ways of doing it.
In addition to these three plants that I grow over one another I am now adding a fourth—the September-blooming Clematis Flammula. It must not be supposed that they are just lumped one over another so that the under ones have their leafy growths smothered. They are always being watched, and, bit by bit, the earlier growths are removed as soon as their respective plants are better without them.
Then there is the way of pulling down tall plants whose natural growth is upright. At the back of the yellow part of the border are some plants of a form of Helianthus orgyalis, trained down, as described later at p. 69. But other plants can be treated in the same way; the tall Rudbeckia Golden Glow, and Dahlias and Michaelmas Daisies. The tall Snapdragons can also be pulled down and made to cover a surprising space of bare ground with flowering side-shoots.
GOOD STAKING—CAMPANULA PERSICIFOLIA.
CAREFUL STAKING—THE LATER MICHAELMAS DAISIES.
As it is still impossible to prevent the occurrence of a blank here and there, or as the scene, viewed as a picture, may want some special accentuation or colouring, there is the way of keeping a reserve of plants in pots and dropping them in where they may be wanted. The thing that matters is that, in its season, the border shall be kept full and beautiful; by what means does not matter in the least. For this sort of work some of the most useful plants are Hydrangeas, Lilium longiflorum, candidum and auratum, and Campanula pyramidalis, both white and blue, and, for foliage, Funkia grandiflora, F. Sieboldi and hardy Ferns.
An important matter is that of staking and supporting. The rule, as I venture to lay it down, is that sticks and stakes must never show. They must be so arranged that they give the needful support, while allowing the plant its natural freedom; but they must remain invisible. The only time when they are tolerated is for the week or two when they have been put in for Dahlias, when the plants have not yet grown up to cover them.