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Abutilon is a shrubby, green house plant that has been adapted to make a great ground cover. They are free growers, with an upright habit, and must be pruned, as they will outgrow their space quickly. These are all natives of South America and New Holland.

The proper soil mixture for this plant is two parts loam, two parts leaf mold, and one of sand. If the soil is too rich, the plants will grow too quickly for the development of the side branches. The plant should be kept moderately moist. The best varieties for a parlor culture include: A. venosum, with large yellow flowers with red veins; A. Bedfordianum, flowers much of the same character. A. striatum, one of our prettiest window plants; always in bloom, and beautiful from its profusion of pendulous, veined, red and yellow blossoms all winter.

There are other varieties as well, some with white or red flowers, but these are not recommended for house plants. These will lose their color under winter culture.

Thunbergia
This plant is usually grown as an annual. Grown for summer decoration in a flower garden, they can also be used as window plants. If using for a window plant, you should sow the seeds in August in pots, and as the plants grow, transplant each pot, training the slender shoots on a trellis.

They need plenty of sunlight, and syringe them often, as these flowers are very prone to attacks of red spiders. They will normally bloom in the middle of January, producing a profusion during the winter and spring months. Plants will show buds very early, but if left to bloom, growth will stop, so pinch off all the buds until the plant has reached the required size.
Cuttings root freely in sand, under bell grass. The soil needs to be on part turfy loam, on part peat, and one part well-rotted manure. It should be watered moderately.

Here are some varieties: T. alata, buff yellow, with a black center; T. alata aurantia, deep orange, with black center; T. alata alba, white, with black center. There are also some superb hot-house species.

Lemon Verbena
This shrub from Chile has only one species, formally called A. citriodora. It is a wonderful plant for many reasons. It has a wonderful fragrance; a small whitish lilac type flower that adds a beautiful touch anywhere it is placed.  It is not a valuable winter plant, as it needs this season to rest, and should be placed in a cellar free from any frost.

The best treatment is, to plant it out in spring in the flower border, where it will make vigorous growth. In the fall, before the first frost, remove the plant with a ball of earth to the cellar. In spring, trim the plant into a neat shape, and re-plant it. If grown in pots, the proper soil is two parts of loam, two of leaf mold, and a slight mixture of sand. While the plants are growing, give plenty of water, but withhold it entirely during the winter.