Faidherbia albida is a hardy, drought resistant, fast growing, large thorn tree that is deciduous at various times of the year - sometimes summer and sometimes winter.
This seems to coincide with seasonal flooding.
Acacia nigrescens (=Senegalia nigrescens) is a hardy, small to large stately deciduous tree is characterised by its knob-studded grey or yellow trunk and branches. The hooked spine-tipped knobs are prevalent on young trees but are less evident on older specimens.
Sweetly-scented spikes of creamy-white flowers are produced from August to November. When in flower this tree is alive and humming with the multitude of insects and birds that feast on the pollen and nectar offered up.
It is an important browse tree for game and generally indicates good ranching land.The graceful, tall canopy attracts Paradise Flycatchers and hole-nesting birds. It is the host plant of the Demon Emperor Butterfly.The wood is very hard and used extensively.
It makes a good bonsai and container subject.It grows in a wide variety of soil types in full sun.
Size: 5 to 18 metres
Acacia nilotica (=Vachellia nilotica) is a hardy, semi-deciduous, small to medium-sized, mushroom shaped tree with dark blackish-brown, fissured bark when mature and a dense crown.This fissured bark is home to many invertebrates and therefore attracts Woodpeckers and other insectivorous birds.
The masses of yellow puffball flowers adorn the tree on and off from September to April.The fragrant, distinctive ‘string of beads,’ decorative pods have a fruity smell and are excellent fodder.The edible gum makes a good quality glue.
Yellow, red or black dye can be made from the pods.The wood is easily worked for furniture and the whole tree has many medicinal and traditional uses This tree is a little slow-growing but is tough and very drought-resistant.
It grows in both well-drained and clayey soils in sun or semi-shade.
Size: 3 to 10 m
Strychnos madagascariensis is a hardy, deciduous, large shrub or shrubby, multi-stemmed small tree with pale grey bark and quite thick, shiny leaves that are blue-grey-green below.
The small greenish-yellow flowers are borne on the old wood from October to December. These are followed by large (80 to 100mm diameter), spectacular, bluish-grey fruits with a hard, woody shell. These fruits adorn the tree for up to a year before they fall. They will keep for up to 5 years, and during this time, the seed will turn dark brown.
The fruits can be polished and used as decorations. The pulp is edible but the seeds are said to be poisonous. All parts of the plant are utilised by game and cattle.
A good tree for a small garden.
Plant in sun or semi-shade in well-drained soil.
Size: 3 to 6m