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Vachellia xanthophloea (Acacia xanthophloea)

(Fever Tree)

This large sized deciduous tree is fast growing in the sun or semi-shade .It also grows well in a swampy, low lying areas and clay soils. It was originally thought that the tree caused malaria, hence it's common name. It was the swampy conditions that caused the malaria. The fragrant yellow flowers open in Spring and smell like vanilla which attracts insects and insectivorous birds. There is also a white flowering form. First hand experience shows that it has an aggressive roots system, although some books claim that they are non aggressive. Plant it 6 meters from a building or a pool. The beautiful yellow bark makes it distinctive and highly sought after, but be aware that they are frost tender when young. It is a useful tree as it has medicinal bark, edible gum and the timber is used for boxwood, furniture and carving as it is hard and heavy. Elephants eat the young branches and giraffe, monkeys and baboon eat the leaves, flowers and the pods. Weavers like to build their nests in these trees, probably because the thorns help to protect them. The bark is used as a good luck charm and it is used medicinally, mixed with dried roots to treat malaria and to treat fevers and eye complaints and the bark is rolled into small balls and chewed for a cough and sore throat. Branches are used to protect fields from hippo. This is a popular bonsai subject. Unfortunately this fungal disease is rather common on Fever Trees. The fungus has been identified as a rust, similar to Uromyces. The suggestion is to totally spray the trunks with triazole type fungicides. (Defender or Bumper 30 ml per 100 L water) Probably the most popular treatment is a total drench with Trichotec --- Trichoderma spp. A living fungi that is antagonistic to many other pathogenic fungi. After the drench it is essential to cover as much of the treated trunk with newspaper to shield the Trichoderma from ultra violet light for a few weeks. Preventatively - be careful as weed-eater damage can initiate an infection. If this is not successful, call an arborist for their opinion and treatment. 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. Rudyard Kipling's story 'The Elephant's child' immortalised the specie with 'The banks of the great grey-green, greasy Limpopo River, all set about with Fever Trees'.

Adansonia digitata

(Baobab)

The enormously fat trunk is the hallmark of the mature tree, the effect being enhanced by the comparatively sparse branches. This is a protected tree in South Africa. Beautiful large, 12 cm , waxy, sweetly scented white flowers with delicately crumpled petals and big yellow stamens occur and are followed by bulbous, egg shaped, woody fruits with a velvet look. The flowers open at night in summer and attract fruit bats and bush babies. It is very drought hardy and it can grow in clay soil. It is a very useful tree as the bark is used for rope, paper, fishing lines, nets, cloth and beautiful baskets. The wood is soft and fibrous and is used for ceiling boards and paper. The wood is salty when burnt and this is added to food. The leaves are edible either raw or cooked as a spinach.They are also medicinal and used to treat fevers or as a poultice on sores and scratches. The pith of the fruit is made into a porridge for mothers with insufficient breast milk. It is fire resistant. The fruits contain tartaric acid and are delicious and the fruit pulp makes a refreshing drink which is high in vitamin C. They contain more calcium than milk, more iron than red meat, more potassium than a banana and more magnesium than spinach.The seeds are eaten raw, or dried and are also roasted and used as a coffee substitute.The seeds are also rich in Vitamin D and are used in beauty products. The fruit is eaten by baboon and monkeys. Superstitions: It is believed that if one drinks the water in which the seeds have been soaking, one is protected from crocodiles. An acid porridge is made from the pith and this makes one strong and brave. It is believed that the evil spirits that live in the flowers will tell the lion to eat whoever picks a flower. In Zambia the women are forbidden to eat the fruit during the beer brewing as it would cause the beer to go bad. It attracts birds, bees, butterflies and mammals. It is a good fodder tree for impala, kudu, nyala and elephant. The roots and trunk can be tapped as a source of water and one tree can supply 1000 gallons of water. The young roots are cooked and eaten. The bark is pinkish - grey. The Champion tree in South Africa is the Sagole Baobab which is in the Big Tree Nature Reserve, 100 km north of Thohoyandou in Limpopo. It has a trunk diameter of 10,47 meters, a height of 22 meters and a crown diameter of 38,2 meters. It is estimated to be several thousand years old. In 1862 Thomas Baines commented on a fallen Baobab near Nxai Pan in Botswana. He painted that group of trees and they are now called 'Baines Baobabs'. That fallen one is still growing after all these years. Recently Prince Charles asked to be taken there as he wanted to paint them in watercolour. Warning - this tree grows in the hot areas of South Africa with minimal rain and is not suited for a Highveld garden. It would need to be protected if planted here. Mankind has used hollow Baobabs for storage, domes, prison at the Kasane police station, bars like the Muchison Club, burial sites and hideaways. During world war 2 Major Trollip built an operating toilet in a Baobab at Katima Mullilo and it is now known as The Toilet Tree.The wood is very soft and is used in the manufacture of paper. Birds such as Rollers, Hornbills, Parrots and Barn Owls nest in the trunk recesses. The tree is also used by Leopard and Spotted Genet. It was named after Michael Adanson 1727-1806 who was a French botanist and naturalist. He published monographs of the Baobab. Digitata comes from the Latin digitus=finger which refers to the composition of the leaflets.The origin of the word Baobab is found in the Egyptian name Bu hobab given to it by Cairo merchants who dealt in exotic products during the 16th century. David Livingstone referred to it as "that giant upturned carrot". It is also referred to the "upside down tree." It is used medicinally to treat fevers and diarrhoea.

Albizia adianthifolia

(Flatcrown)

This is a fast growing, deciduous, large tree with a clean straight trunk and branches that arch upwards and outwards, so that the feathery foliage forms a flat spreading crown. The flowers are white and fluffy and the flowering time is autumn. It grows up to a metre per year and does well in sun or shade. It is very frost tender and therefore is not suitable for Highveld gardens. The wood is used for turning, making drums, carving spoons, the poles are used for building and the bark is used medicinally for skin complaints. It is also used for firewood. The leaves are used to make a tea to treat dysentery. A bark infusion is used to treat toothache. It attracts birds like Forest Weavers that tear open the seed pods in search for parasites. It is also the larval host plant for several butterflies like the Kerstens Hairtail, Blue-spotted Emperor, Satyr Emperor and the Common Sailor. Elephants eat the leaves and young shoots. A lovely tree for a large, warm garden. This tree was introduced to the Seychelles where it has now become an invader specie.

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