It has been said of the calla that "it needs water like a mill, heat like a furnace, food like an army, and absolute rest during the summer." "Keep its feet in water," says the florist. In its native habitat it is in water to the depth of a foot or more, in broad open sunlight, and in soil as rich as decayed vegetation can make it. Soon after flowering season the water subsides, and the soil becomes as dry as it is possible to get in the tropics. Here, nature teaches us how to cultivate the calla. The canna thrives admirably as a house plant, and has a happy way of accommodating itself to circumstances, which makes it especially desirable for decorative effect. In a sunny window it will flower all winter if given abundant heat. In a north window of the same room it will give one beautiful foliage, and it will, "at a pinch," take a back seat and hold its own in the shade, grouped with the statuary and screens, where, with its large, handsome leaves, it will impart to the drawing-room a certain air of oriental languor and magnificence. The canna should be lifted early in September and placed in rich loam, in a large, well-shaped pot or vase, and kept for a week or two in the open, in partial shade, and well watered. It must be carefully housed before the lightest frost appears. Its vigor and beauty are increased by the addition of wood soot to the soil.

All the begonias thrive well as house plants. My experience with the new and choice varieties has not been sufficient to enable me to give valuable advice in regard to their culture. I had formerly supposed that a north window might suit a begonia. It was a mistaken impression. The plant, I find, needs sunlight and a warm atmosphere. It must be regularly and carefully watered, and I have found it best to give the small-leaved begonia its water from the saucer. The smooth-leaved begonias are said to affect a Sunday morning cup of coffee by way of gloss to their foliage. I have seen a superb one thus treated, but have never tried the experiment. The plant likes an occasional watering with soot tea while making its summer growth in the garden.

The coleus, as a window plant, affords fine color effects, but the plant is too tender to be agreeable for house-culture. It requires an invariably high temperature, a fair amount of sunlight, regular moisture, and very rich soil. This given it will grow superbly, but if overtaken, in some unguarded hour, with the slightest chill, it loses its beauty and vigor. The house coleus is almost sure to become infested with mealy-bugs. These may be picked off, and thereafter the plant should be given a careful wash of kerosene water, which must be repeated as often as the pests appear. The formula for this spray, which is used for roses at Mount Auburn, was thus given me by an expert. It is simply one wine-glass of kerosene oil to a gallon of water.

Ferns, as decorative plants, are beautiful and easily grown, though all do not succeed with the maidenhair. All ferns should have an abundance of light, but not too much sun. I have found an eastern exposure the very best possible. Ferns should be placed in the full light of a window, given a high temperature and watered evenly, but not too much. The soil should be partially renewed annually, and care should be taken with the roots, which do not like disturbance; especially is this to be observed with the maidenhair, which, if possible, should never be transplanted, and should have its stated period of entire rest, during which it should be kept almost dry. The fuchsia is, properly, an out-door bloomer, but with care can be brought to flower in winter. To this end, pinch back in summer, and in September house, and place in a north or east window. Give much light, water freely with warm water, and give liquid manure and soot tea about twice a week. If given an entire window both flower and foliage will be superb, with this treatment. Time would fail me to enumerate all the desirable plants for house-culture; there is the orange tree, the costly palm, the delicate asparagus, the achyranthes, anthericum, and curculigo, the aspidistra, cyclamen, and many more equally beautiful and practicable, and last, but not least, the inevitable rubber plant, a little stiff and heavy perhaps, but as a single plant decidedly effective. In arranging a table or stand of mixed plants, care should be taken to give each its proper growing place without marring the general effect. Heliotrope, that ardent sun-lover, should have the front row, close to the window-glass. Beside it should sit a begonia or two, and some flowering geraniums. A petunia and a bridal-rose might come next—the petunia twined among the others to hide its scraggy limbs. A nicotiana, well in the light, might make the evenings sweet with its perfume, and if the room be not over-warm, a pot of mignonette might sweeten the air by day, and at night be removed to cooler quarters. In the "middle aisle" an achyranthes or two may stand with sunlight sifting through its fiery leaves, which have thus all the color-effect of blossoms without their perishability. Further back, anthericum may flourish, with curculigo spreading queenly its fluted palm-like leaves, and always craving moisture. And in the "pauper's pew" Wandering Jew will contentedly sit, like charity, kindly covering the entire defects of staring pots that needs must hold its betters; and on the floor, at the foot of all, aspidistra may seem to "choose darkness rather than light." If you need a growing amaryllis or two to eke out your foliage display, they will take a shady place, though to bring them into flower you need a strong, steady sunlight.

Nicotiana, or tobacco plant, is another fragrant and desirable plant. It thrives in about the same soil as the heliotrope, but needs an entirely different exposure, being one of the few plants that flower perfectly in a sunless window. Experimenting with the nicotiana as a house plant, I found that in a south window the plant was not robust, was scant of bloom, and the flowers quite perishable in comparison with the blossoms in a north window, where the plants grew to a height of more than five feet, and, together, produced one hundred and fifty-six flowers. Through the entire winter no ray of sunlight reached them. They were trained on stout strings quite close to the glass of a double window, kept moist, and given an even temperature of from sixty-five to seventy degrees, and were watered well with liquid manure.

The Circle on the Lawn

At evening the blossoms expand, and all through the night it is as if the room were

"Perfumed from an unseen censer, swung by angels."

Among the sweet-scented tribe mignonette ranks high as an out-door plant, and as a window bloomer it is exquisite. It rarely outlives transplanting, but may be sown in pots about mid-summer, and pinched back for the house. Another method is to obtain the plant from the florist when in bud. The cost is trifling, and if kept cool and in a sunny window, it will continue in bloom for weeks. Mignonette needs much sunlight, but not too high a temperature, and the plant is much weakened by a single day's omission in watering.