Fabaceae-Mimosaceae
Vachellia tortilis subsp. raddiana
Umbrella Thorn · Mgunga
Not currently in the nursery
We can propagate most native species on request — get in touch to discuss timeline and quantity.
About
This keystone tree or shrub is recognised by its distinctive spirally twisted, indehiscent pods and a mix of long, straight thorns alongside shorter, hooked ones. It typically develops a rounded or irregular crown and produces small, aromatic, whitish flowers in tight clusters. Adapted to arid and semi-arid environments, it has a deep root system that helps it access water and plays a vital role in ecosystem stability.
Where it works in Kilifi
Ideal for full sun exposure in Kilifi, this drought-resistant tree thrives in alkaline, sandy, rocky, and well-drained soils, including saline conditions. It serves well as a specimen tree, providing shade, controlling soil erosion, and enhancing soil fertility through nitrogen fixation. Allow adequate space, such as 3x3m for planting.
Growing notes
Growth is initially slow but accelerates once its deep roots establish access to water. Once established, it is very drought-resistant, capable of growing in areas with as little as 40 mm annual rainfall. Protect young plants from browsing animals for the first three years.
Sources
Researched with web grounding from: kew.org, sanbi.org, wikipedia.org, scholasticahq.com, winrock.org, fao.org. Please verify with local knowledge before relying on these notes.