A lot of words can be used to descride Iochroama cyaneum, stunning deep purple flowers is perhaps a summary. And 'Royal Purple' certainly descrides the color of the flowers.
Flowering almost year round in warmer climates Iochroma have similar cultural requirement ro Brugmansias. And if you want to attract hummingbirds this is the plant for you. It is also known as the 'Sorcerer's Tree' and like its relative all parts are poisenous. So wear gloves when handling.
A medium to large growing evergreen soft stemmed shrub Iochroma cyaneum is native to South America (Ecuador and Columbia). Grown for the large drooping clusters of flowers usually a deep purple but in some cultivars a dusky red.
A fairly fast growing shrub that will reach around 3m and spread about the same. The large felty leaves are also attractive. It is readily available for sale online, usually sold in tubes.