Proven Winners® Firefly Yarrow lights up the garden with brilliant, long-lasting clusters of blooms held high on sturdy stems. From early summer through fall, these vibrant flowers add bold color and airy texture, all while attracting butterflies and other pollinators. Compact, drought-tolerant, and deer-resistant, Firefly Yarrow is as tough as it is beautiful—perfect for sunny borders, cut flowers, or mass plantings that glow with effortless charm.