Baptisia australis minor

Commonly known as blue wild indigo or blue false indigo, a member of the pea family from America and favoured by the new wave perennial movement. This one is a smaller variant so better for smaller spaces. Used extensively in beautiful gardens I visited in the Uk and Europe grown with other movement-filled taller perennials. Makes a lovely meadow plant giving that carefree look. It can tolerate shading as it is often found on woodland edges and stream margins, but does well in the sun. It spreads by rhizomes so keep under control in a smaller space. They run deep so it is capable of withstanding drought. If it looses its leaves in the dry trim it back ready for a new flush when it rains. Broken stems make a blue sap as it dries which was used by Americans as a dye. 80cm tall, 80m wide. Flowers vary from lilac to blue in spring to summer. They have abundant pods even in extreme heat and drought ,  but do not eat the leaves, seeds or pods. Baptisia also make a perfect companion for early spring flowering bulbs, as they can be timed so that their stalks emerge just after the bulbs have finished. . If you want to remove it use a bit of herbicide painted onto the cut stems. Saves lots of fruitless digging. Think about planting it in a very large pot dug into the ground in a smaller perennial setting to enjoy its exuberance. The genus name "baptisia" comes from a Greek word meaning "to dye."