Agapathus- Agapanthus requires full sun and a fertile soil which should be moist rather than dry, but not boggy. They are fleshy-rooted plants that produce clumps of sword like foliage which dies back in winter to emerge again the following spring. Blooms lean toward the sun.
"Royal Empress Tree...grows 15-18 ft./year. Empress Tree Facts Grows up to 10 feet or more in the very First Season! Explodes with rich lavender flowers that look like Orchids but smell like Jasmine. Grows as far north as Canada and as far south as Mexico.