Black Truffle Lobelia zone-9 clump-forming perennial with leaves that

clump-forming perennial with leaves that arch outward from a central crown in a fountain-like shape

and in many landscapes

and in drifts where repeated dark foliage can create rhythm and depth

filtered light

and horticultural tasks

Black Truffle Lobelia zone-9 clump-forming perennial with leaves thatDark Chocolate Foliage with High Impact Contrast Black Truffle Lobelia is a dramatic cardinal flower cultivar grown for its dark chocolate purple foliage and brilliant red flower spikes. Also called Black Truffle Cardinal Flower, this upright perennial brings bold contrast to moist borders, rain gardens, pond edges, and pollinator beds. The foliage emerges especially dark in spring, often appearing shiny and nearly black before warming to rich maroon