Jacaranda mimosifolia (jacaranda).

Abstract J. mimosifolia is a medium-large, deciduous tree, up to 20 m in height, with an attractive spreading crown. The species is native to Argentina and Brazil, but has been introduced as an ornamental to many parts of the tropics. J. mimosifolia grows best in highland areas up to 2400 m with an annual rainfall of 900-1300 mm. It grows well on well-drained sandy loam soils, although it will survive on poorer shallow soils. The species does not tolerate waterlogged or clay soils. It is a deep-rooted competitive tree, so few plants or crops can grow beneath it. J. mimosifolia is most well-known for the clusters of striking bell-shaped, blue-violet flowers that are produced during the dry season and which are characteristic of many cities in tropical and sub-tropical countries. J. mimosifolia can be established from either seed or cuttings. Fresh seed has a germination capacity of 50-92% and generally no seed pre-treatment is required. The trees need considerable care during the first two years, requiring weeding, regular watering and staking until well established. They can be fast growing on good sites achieving 3 m per year during the first two years and 1 m per year in subsequent years. Established trees respond well to light coppicing. If used as an ornamental, an open environment or large spacing is required for this light-demanding species with its wide canopy.