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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'.

Zantedeschia aethiopica

(White Arum Lily, Pig's Lily)

Commonly called 'Pig's Lily' as the tubers were boiled and fed to the pigs. Porcupines also enjoy the tubers. The leaves are also cooked as a pot herb, then braised with onions and chilli. A much loved evergreen groundcover which is fast growing in the shade or semi-shade. The large white flowers occur in spring and they attract birds and butterflies. There’s a multitude of uses for this much loved flower, either in wetlands, near water features or in containers. It has medicinal uses as the warmed leaves are used on sores, boils, insect bites, for gout, ulcers, headaches and rheumatism. The leaves must not be crushed as the juice is an irritant. Leaf, root and stem extracts show antibiotic properties.The leaves produce a yellow dye. The flowers are long lasting in a vase. Named for Giovanni Zantedeschia (1773-1846) an Italian physician, pharmacist and botanist. He was particularly interested in the flora of Northern Italy where he discovered and described many new species.

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