- Name: Purple Locoweed - Scientific Name: Oxytropis Lambertii - Other Common Names: Crazyweed - Color: Purple - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Bloom Time: Early Spring - Hardiness Zone: 3 - 6 - Plant Height: 6 - 12” - Plant Spacing: 9 - 12" - Light Requirements: Sun - Soil & Water Preferences: Dry - Quantity: 30 Seeds - Other: This Lovely Native Shows Out In Some Incredible Colors!