'Little Adder' Hummingbird Mint is a purple powerhouse! Also called Hyssop and Anise, blooms late spring into fall, drawing butterflies and hummingbirds all summer. Lavender flower spikes and green leaves are licorice scented. This compact variety grows about 18" tall and wide, in full sun and well-drained soil. Hardy to zones 5-9. Very drought tolerant, and rabbit and deer resistant.