Acknowledging the tree's popularity with locals, the government announced in the early 2000s that it would not remove the trees, but had banned the planting of new jacarandas. Water scarcity has South Africa trying to eradicate foreign species of plants and trees, including the jacaranda.

The jacaranda trees, far from their native Brazil, bloom every October. Pretoria, the administrative capital of South Africa, is popularly known as Jacaranda City because of the large number of trees, which turn the city blue and purple when they flower in spring. Places known for their jacarandas Jacarandas at New Farm Park in Brisbane, Queensland, Australia The jacaranda is regarded as an invasive species in parts of South Africa and Queensland, Australia, where it can out-compete native species.

This plant has won the Royal Horticultural Society's Award of Garden Merit. However, flowering and growth will be stunted if the jacaranda is grown directly on the California coast, where a lack of heat combined with cool ocean winds discourages flowering. Even when young trees are damaged by a hard frost and suffer dieback, they will often rebound from the roots and grow in a shrub-like, multi-stemmed form. In the US, in areas where winter temperatures can dip to −12 ☌ (10 ☏) for several-hour periods, the mature tree survives with little or no visible damage. The blue jacaranda has been cultivated in almost every part of the world where there is no risk of frost established trees, however, tolerate brief spells of temperatures down to around −7 ☌ (19 ☏). The blue jacaranda belongs to the section Monolobos of the genus Jacaranda. Other synonyms for the blue jacaranda are J. mimosifolia, since they are believed to derive from Argentine stock. If this distinction is made, cultivated forms should be treated as J. mimosifolia is native to Bolivia and Argentina. However, some modern taxonomists maintain the distinction between these two species, regarding them as geographically distinct: J. The taxonomic status of the blue jacaranda is unsettled. In its native range the tree is threatened by uncontrolled logging and clearing of land for agriculture, and is assessed as Vulnerable in the IUCN Red List. It is found in the Dry Chaco and flooded savannas, and in the Southern Andean Yungas of the eastern Andean piedmont and inter-Andean valleys, up to 2600 meters elevation. Jacaranda mimosifolia is native to southern Brazil, northwestern Argentina (Salta, Jujuy, and Catamarca provinces) and southern Bolivia. It dries without difficulty and is often used in its green or wet state for turnery and bowl carving. The wood is pale grey to whitish, straight-grained, relatively soft and knot-free. The unusually shaped, tough pods, which are 5 to 8 cm (2 to 3 in) across, are often gathered, cleaned and used to decorate Christmas trees and dried arrangements. There is a white form available from nurseries.

The leaves are up to 45 cm (18 in) long and bi-pinnately compound, with leaflets little more than 1 cm (0.4 in) long. The blue jacaranda is cultivated for the sake of its large compound leaves, even in areas where it rarely blooms. They are followed by woody seed pods, about 5 cm (2 in) in diameter, which contain numerous flat, winged seeds. They appear in spring and early summer, and last for up to two months. The flowers are up to 5 cm (2 in) long, and are grouped in 30 cm (12 in) panicles. The twigs are slender and slightly zigzag they are a light reddish-brown. Its bark is thin and grey-brown, smooth when the tree is young but eventually becoming finely scaly. The tree grows to a height of up to 20 m (66 ft). mimosifolia is listed as Vulnerable by the IUCN. In scientific usage, the name 'jacaranda' refers to the genus Jacaranda, which has many other members, but in horticultural and everyday usage, it nearly always means the blue jacaranda. acutifolia, but it is nowadays more usually classified as J. It is also known as the jacaranda, blue jacaranda, black poui, Nupur or fern tree. Jacaranda mimosifolia is a sub-tropical tree native to south-central South America that has been widely planted elsewhere because of its attractive and long-lasting violet-colored flowers.

Purple flowering tree jacaranda