Thermopsis villosa
Height x Spread: 125cm x 60cm
Sometimes called the Carolina Lupin, this rhizomatous, herbaceous perennial has a mound of three lobed, palmate leaves and tall spikes of pea-like yellow flowers that are a draw for bees and butterflies. Flowering in mid summer, it needs full sun and acidic to neutral soil that drains freely. Native to the eastern USA, it is heat and drought tolerant once established.
Ideal for gravel, prairie, cottage and informal gardens, it often makes a tap root so resents disturbance. It looks great planted with with ornamental grasses such as Pennisetum.