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tree of the week Diospyros whyteana – Bladder-nut – Swartbas – Munyavhili

Diospyros whyteana – Bladder-nut – Swartbas – Munyavhili

Diospyros whyteana, commonly known as the Bladder-nut, is native to much of South Africa and is a highly adaptable, multi-functional tree that fits perfectly in small and large gardens. In an urban environment, it reaches around 5 meters in height, though in its natural habitat, it can grow up to 12 meters.

This evergreen shrub or small multi-stemmed tree is low branching forming a dense, rounded to pyramidal crown. Its shape and shiny dark green leaves are similar to the Holly tree, and its smooth black-grey bark contrasts beautifully with the bright foliage. In spring, the Bladder-nut produces fragrant creamy flowers, which give way to fleshy berries that turn bright red by summer. These berries are enclosed in unique bladder-like capsules that dry to a reddish-brown colour, often remaining on the tree for months, adding seasonal interest long after the flowers have faded.

Diospyros whyteana is not only frost-hardy and drought-resistant, it thrives in both sunny and shaded spots. While young trees should be protected from frost, this species is well-suited to a range of climates and growing conditions. As a slow grower, it responds well to pruning, making it an excellent choice for hedges, screens, or bonsai.

Its compact, neat growth habit and non-invasive root system makes it an ideal choice for container planting, especially in shaded courtyards. The Bladder-nut will attract a wide range of insects and birds year-round, bringing colour and texture to your garden. Furthermore, it is a highly versatile landscape tree, perfect for adding seasonal interest, wildlife support, and aesthetic appeal to any outdoor space.

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