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.
A pretty garden plant supposed to be a hybrid between the orange G. rigens and the yellow G. uniflora, both natives of South Africa. It grows about 1½ ft. high, and has narrow spoon-shaped leaves remarkable for the white under surface. The bright orange-yellow flower heads, with a black and white spot at the base of each ray floret, sometimes find their way to the market and sell readily. The plants should be grown in a warm, sunny situation, in well-drained gritty soil. They are best propagated by cuttings in July and August in cold frames, and protected during the winter months in the same way as the shrubby Calceolarias.