I don't have it, but the (old) catalog reads Indigofera heterantha "Full Sun, well drained soil, drought tolerant."

Thank you, morz8. I didn't have the catalog anymore. And, I must not have read it very carefully because I had it in full shade. Of course, the trees around it had really grown so it probably got some sun in the beginning. I'll move it and work on nursing it back to health.

Just a follow up to my request for help with this plant. I put it into a pot on the deck in full sun last year. It thrived, grew like crazy, and this summer has been blooming all summer. It is so pretty!