This is Agastache rugosa Alba, also known as White Anise Hyssop, Huo Xiang, Liquorice White, and Snow Spike. This is a very important plant for the bees and other pollinators. This plant likes to live in full sun and has a nice fragrance of anise and peppermint. It attracts many birds, bees, and butterflies. USDA Hardiness Zones 5 to 9.