100 ARROYO LUPINE (Hollowleaf Lupine / Succulent Lupine) Lupinus Succulentus Flower Seeds BLOOM TIME: Summer HARDINESS ZONE: Annual (but reseeds itself easily, so it acts like a perennial in all zones) PLANT HEIGHT: 12 - 24" . . . PLANT SPACING: 12 - 15" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average - Dry The Arroyo Lupine blooms faster and longer than other types of Lupines. It also attracts bees, butterflies, and birds.