What: Baptisia “Purple Smoke,” or wild indigo, is a vigorous and tough perennial named for the vibrant, smokey violet-blue and purple flowers that stand lupine-like above the plant on strong charcoal ...

In our yard right now, there are three happy plants. These relatives all have a distinctive color of a very dark green hue. And, as the branches lengthen, a purple color sets into the sky. They are ...