This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
Little generally is known of this magnificent family of Lobeliads in this country; T. Fueillei, Syn. Lobelia Tufa is the best known, and is to be met with about the Glasnevin and College Botanic Gardens, Dublin, and occasionally at Kew; and as seen in the border extending outside the houses at the first-named place in the months of September and October rising to the height of 4 or 5 feet loaded with its brilliant flowers, it will be admitted to have few equals. But, alas ! it is only in such places and in such a border that it can be grown to perfection in the climate of this country without assistance in spring under glass, and the shelter of the same during winter. It is a native of Chili, and will not endure, in most localities, the cold and damp of even our ordinary winters, but it may be lifted in autumn and treated in all respects as recommended for the tall herbaceous Lobelias in a former article. It will not, however, accommodate itself so well to any inferior position out of doors, but must have the most sheltered and warm position possible. It forms a fine pot-plant, and well repays any amount of care and trouble either in pots or planted out that will bring it to perfection.
In most parts of Scotland, it is to be feared, it would do little good except as a pot-plant; but in the south it might be turned to account as a subject for the subtropical garden. The votaries of that system may make a note of it, that they have no more gorgeous subject on their list. It combines the requisites of bold and striking growth, proportionally ample foliage, and a profusion of splendid scarlet flowers. In favourable places, too, it might be used with advantage in ordinary bedding-out for the centres of large masses, and for breaking the uniformity of long lines of borders. Several other species of this fine genus have from time to time been in this country, but with the exception of T. Fueillei and T. Bridgesei - the latter new and as yet untried - there is no other species in the country, so far as the writer is at present 'aware. The best after Fueillei are T. salicifolia, a large-growing sort, with bright red flowers, from Valparaiso; T. blanda, with pink flowers, from Chili, and about 3 feet high; and T. purpurea, about 18 inches or 2 feet high, from Valparaiso, with purple flowers.
W. S.
 
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