This section is from the book "The Gardener V1", 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.
This, in its own family, is perhaps even more distinct and novel than the preceding in its family. The species we have been hitherto familiar with in cultivation are characterised by extreme grace of habit and soft pleasing shades of red in their flowers. This new species is erect and rigid, and somewhat woody in its freely-branching stems, yet withal graceful. The leaves partake of the same hard texture, but are beautifully divided in a thrice pinnate manner into sharply linear segments, and are deeply glaucous. The main stem and branches terminate in openly branched panicles of clear golden-yellow flowers, borne erect, not pendulous, as in other species with which we are acquainted; and they are lasting, and freely produced. It is from the same country, and was introduced b Mr Thompson of Ipswich last year. Its hardiness has not yet been fairly tested. Should it prove hardy, it will be a valuable acquisition to the ranks of hardy herbaceous plants. But even if it Jo not prove capable of enduring our winters out of doors, all the protection it will require will be a cold frame, or similar treatment to Pentstemons and Calceolarias. As a pot-plant for the decoration of the greenhouse and conservatory in spring, it is likely to prove useful.
Our plant was received in April, and was put in a cool propagating-house, and it commenced immediately to throw up a flower-stem. The flowers lasted from the end of April to the first week of June, when they were cut away, and the plant was turned out into the herbaceous border, where it is now throwing up a second panicle. Mr Thompson in his catalogue says it flowers in August and September, but it appears to be easily had in flower at any time in pots.