Pint Plant?of this butterfly plant Asclepias Ice Ballet. They blossom?in zones 4 to 11?throughout the season and will bring more butterflies than you can imagine. These perennials grow 2 to 3 feet tall. Full sun and sandy soil are the best conditions for them. They also are very good at reseeding, and you will have lots to give away to your friends and neighbors. Quite a drought tolerant plant.