THE WINTER WINDOW-GARDEN

In fall, when we bring in the plants that have been growing out of doors during the summer, they usually look healthy, and we congratulate ourselves that we are likely to have a fine crop of flowers from them later on. But soon we see some of their leaves turning yellow and falling off, and though they may make considerable growth, it is unsatisfactory because it is spindling and weak. If buds form, they are pretty sure to blight before reaching maturity, and, instead of having the fine, floriferous plants we had counted on, we have a window-garden that is more noticeable for its discouraged look than for anything else.

The owner of such a garden too often aims to remedy the unfavorable conditions which exist in it by applying some kind of fertilizer to her plants. By doing this she simply makes a bad matter worse, for the application of any kind of plant food to weak and debilitated plants is on a par with giving rich food to a person whose stomach is not in a condition to make proper use of it. No fertilizer should ever be given to a plant that is not in healthy condition; neither should it be given to dormant plants. When active growth begins, then, and then only, should they be stimulated to stronger growth by feeding them well. But care must be taken to not overfeed them. Give only enough to bring about a vigorous growth, but not a rapid one, for that is pretty sure to be a weak one from which there will be a reaction by and by, from which your over-stimulated plants will suffer severely. Most growers of house plants are too kind to them. In this respect they are like a good many mothers who injure their children by over-indulgence through mistaken ideas of kindness.

In applying fertilizers, begin by giving them in small quantities. Watch their effect upon the plants. If their leaves increase in size and take on a rich color, be satisfied that you are feeding your plants quite enough for their good.

The impression prevails to a considerable extent that by fertilizing plants we secure more flowers from them than we would be likely to do if no fertilizer was used. Such is not the case. Feed a plant rich food and it will be likely to make a vigorous growth of branches and foliage at the expense of flowers. The aim should be to simply keep the plants growing well. If this is done, whatever flowers they produce will share in the general benefit of the application, but they will not be increased in quantity by it.

One reason why the plants in the winter window-garden fail at the time when we think they ought to be doing their best is lack of fresh air. If one stops to think about it one will not wonder that her plants have a sickly look. We keep our windows closed tightly, thus keeping out the air that the plants need, and we put storm-doors on every entrance. In fact, we do everything in our power, seemingly, to prevent fresh air from getting to them, and then we wonder why our plants do not flourish. We lose sight of the fact that plants breathe, the same as human beings do. A little intelligent consideration of the conditions under which we undertake to grow them ought to convince us of the mistake we make in expecting them to do well without a regular supply of fresh air. While it is well to make the windows at which plants are kept tight enough to prevent draughts of cold air from coming in upon them, it is not only advisable but absolutely necessary, if we would grow healthy plants, to give them a liberal supply of fresh air every day, and preferably several times a day. This can be done by opening a door or a window at some distance from them, and letting fresh, pure air rush into and fill the room. If possible, let down a window a few inches from the top on the side of the room opposite from where the air comes in, to allow the vitiated air of the room to readily escape before the onrush of outdoor air. In this way it is an easy matter to completely change the character of the air in a room in a few minutes, and in doing it we benefit the human occupants of the room quite as much as we do the plants in it. If the owner of every window-garden would make it a daily practice to give her plants an air-bath she would be surprised at the speedy improvement that would be noticeable in them.

We weaken our plants, as we do ourselves, by keeping the temperature of our rooms too high. We are not satisfied with a comfortable warmth. We want heat enough to keep us constantly conscious of it by its intensity. This is all wrong from the health point of view. What ought to be done is to install a thermometer in every room, and so regulate the amount of heat that all are kept at summer warmth by arranging for a system of ventilation that will act automatically when the thermometer goes above a certain point. This system is speedily coming into general use, and gives most excellent satisfaction. Where it is not in use, the temperature can be kept somewhere near where it ought to be by opening doors or windows from time to time, as already spoken of. Keep in mind that too much heat and too little fresh air will kill almost any plant in time, and the two, working together, will, nine times out of ten, make any window-garden a comparative failure.

Care must be taken in watering plants in winter. Those which are dormant, or are making but little growth, will require very little water. Those in active growth will need more. The only way to tell how much to give is to watch your plants closely, and observe the effect of the applications given. When the surface of the soil takes on a dry look it is safe to conclude that the roots of the plant in the pot have made use of most of the moisture in it, and that more water should be given. Then give enough to make the soil moist all through, and withhold further applications until the dry look appears again. Never form the habit of watering your plants every time you happen to think about it, and then apply just enough to make the soil look wet on its surface. If this is done you will never grow good plants, for only the surface roots will get the moisture they need. Have a stated time for watering, and let the appearance of the soil govern the amount used.