Alstonville is a medium-sized ornamental tree or large shrub from Andean cloud forests, grown for its masses of purple flowers in autumn and winter. The key to growing it is full sun to part shade and protection from severe frost and drought.
Family
Melastomataceae (Melastomat family)
Grows as
Tree, Shrub
Light
Full sun, Part shade
Water
Water regularly in dry conditions; it may not tolerate drought.
Soil
Well-drained, moderately fertile soil.
Temperature
Suited to cool to mild climates; sheltered sites needed where frost is possible.
How easy
Easy
Native range
Panama to NW. Venezuela and Peru
Climate
wet tropical
About
Andesanthus lepidotus, synonym Tibouchina lepidota, also known as alstonville, Andean princess flower, lasiandra, or glory bush, is a medium-sized ornamental tree or a large shrub native to northwestern South America that is cultivated for its masses of purple flowers from autumn right through to winter.
How to grow it
Andesanthus lepidotus is used as an ornamental plant for its violet coloured flowers. Thriving in full sun to part shade, it is planted in parks, public squares, and gardens. Its wood is used in the manufacture of fencing posts, tool handles, furniture and firewood. It is to be pruned after flowering to encourage dense, bushy growth. It may not withstand severe frost or drought, but may still survive in cooler areas provided that it is sheltered and if it is watered regularly if in dry conditions. It is propagated by means of seeds.
Where it grows
Andesanthus lepidotus is native to the Andes Mountains in Venezuela (Merida and Táchira), Ecuador (Azuay, Carchi, Chimborazo, Imbabura, Loja, Morona-Santiago, Napo, Pichincha, Tungurahua, and Zamora-Chinchipe), and central Peru (Amazonas, Huanuco, San Martin), in the montane humid and cloud forests, between 800 metres (2,600 ft) and 3,200 metres (10,500 ft) above sea level. In Colombia it is distributed in the Andean region, being found wild in the temperate and cool thermal floors. It is also found in Panama.
Text excerpted from the Wikipedia article Andesanthus lepidotus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.