The Formosa has beautiful magenta deep colored flowers that grow profusely during the spring. It can get up to 6-8 feet in height and does best on acidic soils. Plant in acid soil in filtered sunlight or light shade, although plants tolerate full sun in cool-summer areas. Use soil rich in organic matter, which retains water and drains quickly.
Never prune after mid-summer because those branches produce the next season's flowers.