Part 6

Another most deserving old plant is the rose geranium. This used to be found in nearly all collections of house plants. It is as easily grown as the flowering geranium. Its foliage is very pleasing, being as finely cut as some varieties of fern. It is delightfully fragrant. A leaf or two will be found a most desirable addition to a buttonhole or corsage bouquet. It can be grown in tree form by giving it the pinching-back treatment advised for the abutilon, or it can be grown as a bush by beginning the pinching process when it is only three or four inches high, thus obliging it to throw out several stalks near the base of the plant.

Old plants of oleander may easily be renewed when they have become so large as to be unwieldy, or have outgrown the space that can be given up to them. Cut away _all_ the branches to within four or five inches of the main stalk, leaving nothing but a mass of stubs. In a very short time new branches will be sent out. There will be so many of them that it will be necessary to remove the larger share of them. If this pruning is done in early spring, when the plant is brought from cold storage, the new growth ought to bear a crop of flowers in late summer. The following season the plant should be literally covered with bloom during the greater part of summer, these blossoms being as large and fine in all respects as those borne by the plant when young. I know of no plant that is more tractable than this one, and certainly we have few that are more beautiful. Large specimens are magnificent for porch and veranda decoration in summer. In December they should go into the cellar, to remain there until March.

Plants with variegated foliage are becoming more in demand yearly. Japanese maize, with long leaves striped with white and cream, is very effective when grown in a mass in the center of a bed. The Japanese hop, with foliage heavily marbled with creamy white, is quite as attractive without flowers as many of our flowering vines are. Ricinus, with enormous foliage of a lustrous coppery bronze, will be found far more "tropical" in effect then the cannas and caladiums we see so much of nowadays. The leaves of this plant often measure a yard across. If you want it to be most effective, plant it in some exposed place where it will have plenty of room to spread its branches.

From what I have said in a preceding chapter it will be readily understood that I am not an admirer of "carpet-bedding" except where plants with small, richly colored foliage are made use of. These can be pruned in such a manner as to keep each color inside its proper limit, but flowering plants will straggle across the lines assigned them, and all clearness of outline in the "pattern" will soon be lost. But when plants are located with a view to securing color contrast, very fine effects can be obtained from them. A circular bed filled with pink, white, and pale-yellow _phlox drummondii_ in rows of each color will be found pleasing, and it has the merit of being easily made.

If a round bed has scarlet salvia for its center, surrounded with yellow calliopsis, or California poppy, it will afford a mass of most intense color that will produce a most brilliant effect. A bed of pink flowering geraniums--pink, mind you, not scarlet or any shade of red--bordered with lavender ageratum, will be found extremely attractive if care is taken to cut away all trusses of bloom from the geraniums as soon as they have begun to fade. If this is not done the bed will have a draggled, slovenly effect.

Scarlet salvia combined with euphorbia, better known as "snow-on-the-mountain," will be found very effective, the white and green of the euphorbia bringing out the scarlet of the salvia most vividly, and affording such a strong contrast that a bed of these two plants will always challenge admiration.

The euphorbia will be found a very useful plant for almost any place in beds or borders where something seems needed to relieve the prevailing color. It deserves more attention than it gets.

The impression seems to prevail that many plants ought to retain their old leaves indefinitely. They will not do this, however. Leaves ripen after a time, and the plant will shed them, as all deciduous plants shed theirs in fall. Therefore if you find the lower leaves on your ficus turning, yellow and dropping, don't be frightened. The plant is simply going through one of the processes of nature.

But if a good many of the leaves fall all at once it will be well to look for some other explanation of the plant's action. The loss of foliage may come from lack of moisture in the soil, or the roots of the plant may be pot-bound. Examination will show if either is the case. If the soil is found to be dry, more water should be given. If the pot is filled with roots, repot the plant, giving it more root room. The owners of plants should take all these things into consideration before coming to any conclusion as to what the cause of trouble is. Unless they do so there will have to be "guesswork" relative to it, and that is never safe or satisfactory. Trouble may come from overwatering, or from lack of good drainage, or a soil deficient in nutrition. You see, it is necessary to study these matters from several angles, so to speak, as the trouble complained of may have its origin in any one of the conditions mentioned, and not much can be done to remedy matters until one has made an examination that brings to light the facts in the case. These known, it will be a comparatively easy matter to determine the treatment required, for the conditions that are found to exist will, to a great extent, indicate in almost every instance the remedy needed.

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Some good vines for window-box culture are:

Madeira vine.--Heart-shaped foliage of a rich, glossy green. Very rapid grower.

Tradescantia.--Green, green striped with white, and olive striped with Indian red. Quick grower.

Vinca Harrisonii.--Dark-green foliage, edged with yellow.

Senecio.--More commonly known as German ivy. Pretty, ivy-shaped foliage of a clear, bright green. Very rapid grower. Needs frequent pinching back to make it branch freely.

Glechoma.--Green, variegated with bright yellow.

Othonna.--Better known as "pickle-plant" because of its cylindrical foliage, which resembles a miniature cucumber. Has pretty yellow flowers.

Saxifraga.--Leaves of graying olive sprinkled with white.

Ivy-leaved geraniums.--There are many varieties, some with pink, some with white, and others with red flowers. These are excellent where flowering plants of drooping habit are desired. A box edged with these plants, especially the pink variety, with white Marguerites--better known as Paris daisies--in the center, will be found especially pleasing.

In window-boxes having a northern exposure such plants as Boston and Whitman fern, _asparagus plumosus_, _asparagus Sprengerii_, and any of the fibrous-rooted begonias will be found very effective. These plants can be turned out of their pots and planted in the earth in the box, or the pots in which they grow can be sunk in the soil. This is in several respects the best way, as in fall, when the window-box has to be discontinued, the plants will not have to be repotted.

Petunias are excellent plants for window-box culture. They can be made to grow in upright form by giving them a little support, or they can be allowed to droop over the sides of the box. A combination of purple and white varieties will be found pleasing. This plant comes into bloom early in the season, when grown from seed, and it continues to bloom until cold weather comes.

THE END

TRANSCRIBER'S NOTE

-Plain print and punctuation errors fixed.