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Sutherlandia frutescens, is a much-respected and long-used medicinal plant that is also an attractive garden plant, and has been cultivated in gardens for many years, for its fine form, striking colour and luminous flowers. FoliageSutherlandia is an attractive small, soft wooded shrublet, 0.5 to 1 m in height. The leaves are pinnately compound . The leaflets are 4-10 mm long, grey-green in colour, giving the bush a silvery appearance. They have a very bitter taste. The flowers are orange-red, up to 35 mm long, and are carried in short racemes in the leaf axils at the tips of the branches in spring to mid-summer (September - December).Flower close up The flowers are not typical 'pea' flowers, the wing petals are very small and are concealed in the calyx, and the standard petal is much shorter than the keel. The fruit is a large, bladder-like, papery inflated pod and is almost transparent. It can be used in dry flower arrangements as it dries well, maintaining its colour and form. Sunbirds pollinate the attractive, butterfly-like red flowers. The lightweight, papery, inflated pods enable the seed to be dispersed easily by wind. Stock browse the foliage. Ecologically legumes are well known for fixing nitrogen in the soil through a symbiotic relationship with bacteria. The bacteria infect the roots, forming small growths or nodules. Inside the nodules, atmospheric nitrogen, which the plants cannot use, is converted to ammonia, which plants can use. The plant supplies sugars for the bacteria, while the bacteria provide the biologically useful nitrogen that the plant absorbs. Sutherlandia frutescens occurs naturally throughout the dry parts of southern Africa, in Western Cape and up the west coast as far north as Namibia and into Botswana, and in the western Karoo to Eastern Cape. It shows remarkable variation within its distribution.
USDA Zone - 8
Season to sow - Autumn
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