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 London Journal of Horticulture calls attention to the exquisitely beautiful appearance of Clematis present when grown together on pillars in conservatories and similar positions. As a rule, it is not best to grow more than one plant to a pillar, as both are usually spoiled; but in this case there is positive advantage to have both, each lending a charm to the other, and combining to produce a more effective picture than either separately. After growing a year or two the stem becomes naked at the bottom; just then put a fine, strong-growing mass of geranium, and the furnishing is complete. "What can be more pleasing than a scarlet geranium, with a few carelessly hanging branches of a white clematis intermingled, or a white geranium with a lavender or blue-shaded clematis? "
"Nothing can have a finer effect in the conservatory than masses of clematis; the flowers are soft, but brilliant, of the largest size, and, consequently, conspicuous at a distance. I have' had from 100 to 200 expanded blossoms on a plant at once. I have them trained to the rafters, with that best of all climbers for large buildings (Tacsonia var. Volxemi) rambling from rafter to rafter amongst them; the brilliant crimson flowers of the latter being very effective."
"Although the flowers like plenty of light, they should be shaded from a strong sun."