Asclepias tuberosa or Butterfly Weed is capable of being at home in gardens across much of the country. It grows in zones 4-9, likes full sun, is deer resistant and attracts plenty of pollinators, including a large variety of butterflies. In my North Texas garden it is very drought resistant. Once established, I don't supplement its water. In fact it is rated to need as little as 10 inches of rain annually and will tolerate as much as 40 inches of rain if it has good drainage. No wonder it has been named 2017 Perennial Plant of the Year by the Perennial Plant Association.
Butterflies pictured in this post perched on butterfly weed blooms are a monarch butterfly (top) and a variegated fritillary butterfly (bottom). Because butterfly weed is a host plant for monarch butterfly caterpillars, if you are lucky enough to have monarch eggs laid on your plant(s) and witness the growth and transformation of the caterpillars, your plants may temporarily look a little worse for wear, but they will bounce back and you will have helped a generation of monarchs get off to a good start. Your local honey bees will also thank you for planting butterfly weed.