‘Nothing is a better lesson in the knowledge of plants,’ says Miss Jekyll, ‘than to sit down in front of them, and handle them, and look them over just as carefully as possible; and in no way can such study be more pleasantly or conveniently carried on than by taking a light seat to the rock wall and giving plenty of time to each kind of little plant, examining it closely, and asking oneself and it, Why this? and Why that? especially if the first glance show two tufts, one with a better appearance than the other; not to stir from the place until one has found out why and how it is done, and all about it. Of course a friend who has already gone through it all can help on the lesson more quickly, but I doubt whether it is not best to do it all for oneself.’
That is excellent gardening advice, and you can apply it to whatever you are trying to do, whether it is a rock wall or a patch of Mustard and Cress.
We must end this chapter with a short list of things we hope you will never allow in your rock garden, and as they are all to be seen here and there, you need not say that the advice is unnecessary. Coloured glass balls, for instance! We assure you that, especially in Germany, there are many people who think coloured glass balls beautiful objects in a garden. Others like bits of quartz, and in cottage gardens you may see sea-shells and broken glass. Then, persons who ought to know better will make a grimy erection with clinkers or broken bricks, and a home for Slugs and Woodlice with a rotting tree-stump. You must do none of these things. If you live where you can easily get stone, have a rock garden in some form, even if it is only an edging of stones to your herbaceous border, and grow some of the plants we have told you of amongst them. If you live where your walls are of brick, you may still get some plants established on them. For instance, where weeds have established themselves, you can remove them, stuff in a little good soil, and sow a few seeds of Snapdragon or Wallflower. Old brick walls make beautiful wall-gardens, and when the builder is not looking you can help on the process in a new one with a chisel, a little fine moist soil, and a few roots or seeds.
CHAPTER XI
DIFFICULT AND SHADY GARDENS
As we told you in our first chapter, the worst piece of ground you can have for a garden is one already occupied by the roots of trees and coarse-growing shrubs or hedges. All around London Privet hedges and grimy Laurels are to be seen everywhere, and wherever people try to grow flowers near their thievish roots the flowers languish. You may put a few Crocuses in front of a group of Laurels, but you will not get much else to flourish. Even that hardiest of Saxifrages, London Pride, leads a starved life, and you cannot know how beautiful it is until you have seen it sending up masses of its foamy pink flowers in good air and from good soil. If you not only have an impoverished and shady garden, but one under the drip of trees, you will not be able to do much with it. Still, we can tell you about a few things we persuaded to live in a situation of this kind not far from London. You must understand that the two authors of this book have had very different gardening experiences. One is the mistress of a large and very beautiful garden running down to the sea in the West of England, while the other has been a wanderer on the face of the earth, and has worked in many gardens of varying sizes. It is usually her fate to find a wilderness, delve like Adam in it till it is a garden, and then go her ways to the next wilderness. The one you are to hear of now was not a pleasant country wilderness, where even the Briars and Nettles are growing in good clean soil and in fresh air. It was one of those disheartening builders’ gardens, where the earth looks a sort of unwholesome lumpy drab, and is full of old bricks and ginger-beer bottles. One side of it was bounded by a Privet hedge, and the soil was starved, but as it was sunny, we got the strong herbaceous things and pinks to do well in it. The other side, which was under great Horse-Chestnuts and Laburnums, got no sun at all, looked very bare, and was evidently wretched soil. We had it well dug and dressed, and planted clumps of Michaelmas Daisy, of Iris Germanica, and of the common Evening Primrose a little way back. The Michaelmas Daisies soon made big bushes, and did very well. The Evening Primroses flowered, but ran up rather tall and spindly. The Iris did not flower well, but it increased, and made a clump of handsome leaves. In front we found that the Perennial Candytuft (Iberis Sempervirens) did well, and increased quickly. You can hardly have a more satisfactory plant for the front of a border of this kind. Crocuses came up year after year, too, but we never persuaded our Daffodils to flower more than once in this garden. Annuals we advise you strongly not to try. They are a source of disappointment in such circumstances. The pretty little yellow-flowered shrub St. John’s Wort should do well under trees, and so will some hardy Ferns.
If your garden is in the country, and is only partly shaded by trees, you can grow many beautiful things in it. Perhaps you will be able to have a background of large stones, and plant Ferns amongst them. The hardiest Ferns are Male Fern, Osmunda, Hart’s Tongue, Spleen Wort, Lady Fern, and Shield Fern, and these all like shade. Amongst the Ferns you should have Solomon’s Seal, Columbines, and Foxgloves. As far as you can, in a garden of this kind plant big patches of one flower, and not a muddle of single specimens. Have a bed of Lilies of the Valley in some part of it, and under the trees a bed of Wild Hyacinths. Snowdrops do well amongst the roots of shrubs and trees, so well that in some gardens they spread and increase like a wild flower. They are fond of peat. Primroses do well in shady places, and so does the Wood Anemone (Anemone Nemorosa). Periwinkle will flower in shade, though it likes sun part of the day. Many Saxifrages and Sempervivums (Rockfoils and Stonecrops) will do well in shady places. For instance, if you have a stone edging to your border, you will be able to have clumps of the mossy Saxifrages and of various Stonecrops. Between them the little dwarf Campanulas would do well, and give you colour all through the summer months. The splendid tall Campanula Pyramidalis might do farther back near your Ferns, if you can give it good soil; so would Campanula Persicifolia, which grows wild in Yorkshire woods. Many Lilies like partial shade and to be near shrubs, but they should never be planted close to the roots of trees.
It is not as generally known as it should be that nearly all the Cyclamens are hardy. The Persian Cyclamen, that we know so well as a pot plant and in greenhouses, is not hardy, and you must not try that in your garden. Get some of the other species which you will find offered in any good bulb catalogue, and in winter give them a covering of moss or dry leaves. They like a dry, porous soil, mixed with a little peat or leaf-mould and some lime or old mortar. The corms are often half out of the ground, or at any rate level with it; but some gardeners, who have paid great attention to their culture, prefer to bury them just under the soil, because the roots of some species come from the top of the corm. The one thing Cyclamens will not stand is stagnant moisture. You must give them well-drained, sandy soil, mixed with a little lime. We repeat this because it is so important, and because Cyclamens are so beautiful that they are worth any trouble you can take for them. Some flower in spring and some in autumn, and they must be planted when they are at rest: the spring ones in October or November, and the autumn ones in June. If they flourish with you their seedlings will appear naturally; otherwise you had better buy new corms when you want them. Gardeners raise them from seed, but this requires a frame or gentle heat.
In a mild climate you can grow Hydrangeas and the shrubby Veronicas in shady places, but they will not live through prolonged hard frosts.