Royal Raspberry agastache produces rosy purple flowers with burgundy calyxes. Calyxes hold their color after the plant stops blooming, extending interest into fall. This is a Proven Winners® selection and reknowned for its large, full habits, significant garden presence, and cold hardiness. This variety is reliable and winter hardy down to zone 5 and returns each spring with new burgundy foliage! Agastache thrives in dry soils and is right at home in rock gardens and xeric container plantings. The flowres and foliage are aromatic too!