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Olea europaea subsp. africana

(Wild Olive)

One of the oldest cultivated trees and is the symbol of peace as when Noah sent a dove from his Ark, it returned with an Olive leaf. In ancient Rome an olive branch was held to plead for peace and in ancient Greece, Irene, the Goddess of peace loved olives. The tree represents abundance and drives away evil spirits. This medium sized, evergreen tree is frost resistant, drought resistant and grows in the sun. It is neatly shaped and has a dense spreading crown. The white/green flowers open in summer and they attract bees and butterflies. The flowers are replaced with edible, purple berries which attract birds - insect and fruit eaters like starlings, pigeons, parrots and louries. They are also enjoyed by people, monkeys, baboons, mongooses, bushpigs, and warthogs. The fruit is also used to produce black dye. It's useful for nesting sites. The leaves are browsed by game and stock and is a fodder tree for mammals. It is useful as a formal, pruned hedge or an informal hedge/screen. Very popular as a bonsai subject. They sometimes have aggressive roots so plant 4 meters from a building or a pool. It is protected in the North West Province, the Cape and the Free State. There are numerous medicinal uses for eye lotions, tonics for high blood pressure, kidney ailments and sore throats. Wild Olive tonic is available commercially and is used to treat colds and to build the immune system. It is believed that inhaling the smoke from a Wild Olive fire will cure a hangover. Magical uses are to protect against lightening, by putting a branch in an open doorway. The beautiful golden brown wood is used for furniture, ornaments and fencing posts. As the wood is strong and durable, it is used for walking sticks, knobkieries and spear handles. It grows along rivers and is useful to stabilize the soil. A must for a bird garden! This is a popular bonsai subject. The name is derived from the Greek elaia and the latin olea = classical latin name for the olive.

Vachellia karroo (Acacia karroo)

(Sweet Thorn)

Previously known as Acacia karroo. This very popular deciduous tree is frost resistant, water wise and fast growing in the sun or semi-shade. The bright yellow pompom flowers occur in spring and they are honey scented which attracts insects and they attract insect eating birds. It is favoured by honey farmers. It is also a popular tree for nesting sites. This tree has pairs of straight thorns.The leaves are eaten by mammals, bush babies, rhino, giraffe, eland, kudu, sable, gemsbok, impala, springbok, nyala, and monkeys. I once watched vervet monkeys carefully picking the top 4 leaves off of the branches which could be a prickly affair. They also eat the flowers. The Xhosa use the leaves to feed their goats. This is a useful tree for thorny, security barriers but do remember that it does have aggressive roots so allow 7 meters from a building or a pool. There are a host of medicinal properties using all parts of the tree. The roots are used for infant colic. The gum is used to draw abscesses, splinters and to treat thrush and is also eaten by people, bushbabies and monkeys. It was once exported as Cape Gum. It was also used as glue. Ground bark is used for stomach ache, dysentery, diarrhoea, loss of blood and ailments as a result of sorcery. The thorns are used for heart pains and magical purposes. Crushed roots are mixed with food to treat infant colic. The roots are used to treat body pains, dizziness, convulsions and VD, It is also used as an aphrodisiac. Parts of the tree are also used to kill parasites in fowl runs. The bark is used to tan leather red and it makes strong twine. It makes excellent firewood. The seeds are a coffee substitute. The wood is hard and is used for building, furniture and fuel. Simon van der Stel wrote of the Sweet Thorns in Namaqualand 'These trees are never found except where surface or underground streams run. ' It indicates fertile soil and good grazing. It is useful in a garden as the roots fix nitrogen in the soil. It is the larval host for many butterflies like the Common Hairtail, Black-striped Hairtail, Otacilia Hairtail, Talbot's Hairtail, Black Heart Common Scarlet, Natal-spotted Blue, Thorn - tree Blue, Topaz-spotted Blue, Silver-spotted Grey and the Burnished Opal. This is a popular bonsai subject. Named for Rev George Harvey Vachel (1798-1839) a British priest and plant collector. He was chaplain to the British East India company in China where he collected plants.

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