This section is from the book "The Gardener's Monthly And Horticulturist V23", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
In the Gardener's Monthly for April, 1881, page 110, Miss M. W. inquires if the Rhynchos-permum jasminoides can be successfully grown as a house plant? To this query I regret to have to answer No.
The Rhynchospermum, or Trachelospermum jasminoides of some botanists, is a beautiful evergreen greenhouse climber, when well-grown often exceeds twenty-five feet in length, with dark green leaves, producing its jasmine-like, pure white flowers in clusters during the spring months in the greatest profusion. When in full blossom the flowers are so abundantly produced as to almost cover the entire plant, and what is more, the flowers continue to be produced in succession for a period of at least two months. On this account it is a very desirable plant for florists, as the flowers are much used by bouquet makers.
It is a plant of comparatively easy culture, requiring to be planted out in a well drained border in a compost composed of two-thirds well-rotted sod and a little more than one-third well-rotted manure or leaf mould, in which a quantity of broken charcoal has been mixed. Do not allow it to become very dry at its roots during the winter season; but care should also be taken that the soil does not become too wet, as in this event the roots are liable to rot. During its season of growth, and also during the summer season, water freely and syringe at least every other evening. As the Rhynchos-permuni is unfortunately rather subject to the scale and mealy bug, a thorough washing of whale oil soap and water should be given it at least once a year.
I do not think that Miss M. W. would be pleased with the Rhynchospermum as a window plant, and would not recommend it for that purpose; but in the event of her having a plant I advise her to shift it into a pot two sizes larger than the one it now occupies, and to repeat this process every spring after the plant has ceased flowering. When the plant becomes so large that it cannot be conveniently handled, it should be planted out in the greenhouse. If grown in a pot it should be plunged in a partially shaded situation during the summer season. When grown in a pot it produces a few flowers yearly, but they are not to be compared in size and quantity to those produced on a plant that has been grown in a well prepared border. It can be grown in a greenhouse, and a temperature of from 45° to 55° will answer very well; but if it is wanted to flower early in the season it must be given more heat.
In the Monthly, some time ago, I noticed the fact that it had ripened seed in England. Its fruiting is a common occurrence here. I have two plants, each of them being over twenty five feet in length, and I notice that seed-pods are produced on them occasionally.