This section is from "The Horticulturist, And Journal Of Rural Art And Rural Taste", by P. Barry, A. J. Downing, J. Jay Smith, Peter B. Mead, F. W. Woodward, Henry T. Williams. Also available from Amazon: Horticulturist and Journal of Rural Art and Rural Taste.
The Lantana requires similar soil and treatment to the Calceolaria - except that it is of a stouter, a more woody nature, and needs no support. Its compact head of flowers of different and changing hues - white, crimson, scarlet, orange, and yellow, sometimes all in the same spike, is always an object of great interest, though its peculiar perfume is not universally agreeable.
A very desirable window plant is the Pyrethrum, sometimes called Mountain Daisy ; it is found in great profusion in the mountainous regions of Asia. This will grow in ordinary soil with very little care, and its delicate light green foliage, crowned with dense clusters of snow-white blossoms, contrasts finely with the deeper colorings of Calceolarias and Lantanas. Old plants should be cut to their roots, and both roots and cuttings be set in a garden-bed in May or June, and treated as common out-of-door plants. Pinch out all flower-buds till they are taken to the house. In September pot them with the same soil in which they have been growing. Keep them in the shade, with occasional watering, for a fortnight; then bring them within doors. The Pyrethrum does best in a moderate temperature with scanty watering.
These are rather tender, and require a hot season to bring them out well. On cold damp soils they are of little use. The most generally useful are Fulgens mutabilis and Crocea superba.
Nierembergia Gracilis makes a charming mass of pretty white flowers, to tone down the effect of strong colors.
Genothera Prostrata makes a capital yellow bedder on cold, damp soils. - Floral World.