This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
This fine Chilian hardy or half-hardy annual has given rise to many choice varieties remarkable for the beautiful colour and veining of their large tubular flowers. The plants usually grow about 2 ft high, and have somewhat clammy stems and leaves, and the colour of the blooms varies from orange to salmon, cerise, violet, purple, crimson, etc., all conspicuously veined, as shown in the coloured Plate. Seeds and young plants sell freely in spring. There is nothing to equal a bed of well-grown Salpiglossis in bloom in the open air during the summer months.