Great for attracting monarch butterflies into the garden. USDA hardiness zones 3a-8b (lows -39.9 °C or -39.8 °F). Full sun to partial shade. Grows 4-6 feet with a long summer bloom period. Sweet but subtle vanilla scent; pink blooms on long stems make for a great cutflower. Slow release fertilizer is optional. Over-fertilization can inhibit flowering.
Part of the Butterfly Bed & Breakfast Project.