Aloe arborescens, Tree Aloe or Krantz Aloe, is a large branching arborescent Aloe with a wide distribution over Southern Africa where it grows from sea-level up to 2800 metres on mountain-tops and in rocky montane grassland. It is cold-tolerant and will take a degree or two of occasional frost but is suitable for outdoor cultivation in the UK only in very favourable microclimates in urban areas and south-west coastal districts. In cultivation in the UK it is fast-growing with a regime of full sun and a very free-draining substrate with plenty of water in the summer but a gradual easing off of watering from September and stopping altogether from October through to March.
An exceptional plant for experienced growers. In our experience it is slightly more tolerant of frost than Aloe marlothii
|Synonyms||Aloe arborea, Aloe arborescens var. frutescens, Aloe arborescens var. milleri, Aloe arborescens var. natalensis, Aloe arborescens var. pachystyrsa, Aloe arborescens var. viridifolia, Aloe frutescens, Aloe fruticosa, Aloe fulgens, Aloe mutabilis, Aloe natalensis, Aloe perfoliata var. arborescens, Aloe perfoliatum, Aloe principis, Aloe salm-dyckiana, Aloe salm-dyckiana var. fulgens, Aloe sigmoidea, Catevala arborescens, Pachidendron principis|
|Geographical Origin||South Africa, Malawi, Mozambique, Zimbabwe|
|Cultivation||Full sun. Sheltered aspect. Well-drained substrate. Water during summer, completely dry in winter. Dislikes winter wet. A well drained soil to which generous amounts of sand, grit and shingle have been mixed.|
|Eventual Height||3-5 m|
|Eventual Spread||2-3 m|
|Hardiness||Tolerant of a few degrees of frost but not fully hardy in most UK locations. Best in southern coastal regions or urban microclimates free from serious frost. Sensibly in a container brought in during the winter months. Fleecing, even in a cool greenhouse|
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