Iocharoma cyaneum
Iochromas are related to Angel's Trumpets (Brugmansia) but have smaller leaves and clusters of lovely tubular flowers. Iochroma Countess is a new hybrid with pink flowers, Royal Blue has medium-blue flower clusters, Sky King has pale blue flowers, Frosty Plum, Plum Beauty and Purple Bells have purple flowers. They are cold hardy to zone 7 (mid-20s F) but most people in zone 7 grow these little semi-tropical (Ecuador & Argentina) shrubs in a container that can be moved to a protected place in the depth of winter. They mature at 6 to 10 feet tall. Iochroma Purple Bells Remove the spent flowers to keep it blooming for a longer period of time and to maintaine its appearance. The USDA says tomato hornworms can be a problem and their detailed study of the plant is available online at http://naldc.nal.usda.gov/download/3207/PDF One plant source is Katurz Greenhouses( http://www.kartuz.com ) There is a YouTube video on how to propagate them from cuttings ...