[LETTER X.]
LAYING OUT A KITCHEN-GARDEN.—MAKING GRAVEL WALKS.—BOX EDGINGS.—CROPS OF CULINARY VEGETABLES.—CUCUMBERS, MELONS, AND MUSHROOMS.
I had not intended saying any thing about the kitchen-garden, as it hardly comes within a lady's province; but as you tell me you are so much annoyed by your old gardener never having the things you want when you want them, that you think of forming a small kitchen-garden near the house, I shall be very happy to give you my advice as to what appears to me to be the best method of doing so.
Every kitchen-garden ought, if possible, to be either square or oblong, for the convenience of planting the beds, and you will find a garden of one acre in extent quite as much as you will be able to manage. I would advise you to have it surrounded by a wall about ten feet high for fruit trees; and in front of this wall there should be a border ten or twelve feet wide; beyond which should be a gravel walk four feet wide, leaving a square or oblong plot of ground in the centre for culinary vegetables. This central plot may either have a main walk up the centre, and two or three side walks, or be left all in one bed, which may be divided into compartments, with paths between, to suit the convenience of the gardener. The best situation for your kitchen-garden will be as near the stable as possible for the convenience of manure; and, of course, it will join the reserve-ground. The surface of the ground should be level, or gently sloping to the south, and there should be no high trees near it. The whole of the garden should be well drained, and you should contrive it so as to have easy access to either pond or river water. A valley or a hill is a bad situation for a kitchen-garden; as the valley is very liable to injury from frost on account of the damps that hang over it; and the hill is not only cold, but exposed to injury from high winds.
I have already mentioned that the form of a kitchen-garden should be either square or oblong; and I may add, that the walks should always be straight, as, if they were serpentine, it would be difficult to wheel a barrow of manure along them without overturning it. The square form of the garden, however, is not only on account of the walks, but in order that the compartment in the centre may be divided into oblong beds, as it is most convenient to sow vegetables in straight lines to allow of weeding and hoeing between them, earthing them up, &c. The best soil for a kitchen-garden is a sandy loam, and the surface soil should be from two to three feet deep. You will find it very convenient to have a vinery or forcing-house close to the kitchen-garden; and you can either have a small separate garden for melon and cucumber-beds, called a melon-ground, or this may form a part of your reserve-ground.
The first thing to be done when you have fixed upon your ground is to form the walks, marking them out by two garden lines, and then digging out the space between in the shape of an inverted arch, which should be from one to two feet deep in the centre. The arch is then partly filled in with brick-bats, stones, or any other hard rubbish which can be procured, leaving a little hollow space exactly in the centre to serve as a drain. Care must be taken, when filling in the rubbish, to put the largest pieces in first, then pieces somewhat smaller, and then pieces broken very small, which are rammed down as hard as possible, so as to make a smooth surface immediately under the gravel. The gravel before laying it down should be sifted, and all pieces larger than a moderate-sized gooseberry should be thrown on one side. As soon as the small gravel is laid down and evenly spread it should be rolled, and this rolling should be repeated occasionally till the walk becomes quite hard and firm. If the gravel does not bind well, it may be improved by mixing with it powdered burnt clay, in the proportion of one wheelbarrow full of clay to a two-horse cart load of gravel. The clay may be burnt by making it into a heap, intermixed with, and surrounded by, faggot wood. Gravel walks should always be slightly raised in the middle, in order that the water may run off on each side. If you should have an old gravel walk that wants renovating, the gravel should be loosened with a pick, turned over, raked, and firmly rolled, adding a coating of fresh gravel if necessary. If weeds should appear on a gravel walk, they are best killed by watering them with salt and water, and this liquid will prevent any other weeds from appearing.
Box edgings are the best for gravel walks, and March or April is a good season for planting them. The following is the mode of performing this operation, which requires some attention, as the beauty of the edging depends on its regularity. The margin of the bed for about a foot in breadth should be watered, and afterwards beaten firm and level with the back of a spade; a garden line should then be stretched along close to the walk, and a shallow trench opened, sloping towards it at an angle of rather less than 45°. Some dwarf box having been procured from the nurseryman, it should be divided into separate plants, and the branches and roots trimmed, so that the plants may be nearly of a size. These are laid along the sloping face as regularly as possible, with their tops rising about an inch above the soil, and the earth is drawn upon them, so as to fill up the trench and make them quite firm. The plants are then watered, and nothing further is required but to supply the place of any that may chance to die, and to keep the tips neatly trimmed.
The crops of culinary vegetables are of two kinds, those that are permanent, and those that are temporary. Of the permanent crops, the most important are the asparagus beds, on account of the great length of time they take in preparing. The ground must be first trenched three or four feet deep, and plenty of stable dung buried at the bottom of the trench. The beds are then marked out four feet wide, and paths left between them; and the plants, which must be procured from a nurseryman (as they should be two years old when they are first put into the bed), must be planted in rows nine inches apart, and deep enough to have the crown of the root two inches below the surface of the ground. The beds are covered with rotten manure during winter, which is forked into the ground in the spring. The asparagus stalks are not cut till the second or third year after planting; but after that the beds continue to produce for twelve or fourteen years, or even more. All the shoots that push up from April to Midsummer may be cut off and used for the table; but those that spring after Midsummer should be suffered to expand their leaves, in order that they may elaborate their sap, and thus strengthen the roots.
Sea-kale is planted in beds in the same manner as asparagus, when the plants are a year old. The first year the plants will require little care, except cutting down their flower stems whenever they appear; but the second year, each plant must be covered with river-sand, and then have a sea-kale pot turned over it, on which must be heaped stable dung fifteen or twenty inches high, in order that the heat may make the young shoots grow rapidly, and thus make them tender and succulent.