- Name: Hardy Moss Verbena - Scientific Name: Verbena Tenuisecta - Color: Violet - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Bloom Time: Spring - Hardiness Zone: 6 - 11 - Plant Height: 8 - 12" - Plant Spacing: 18 - 36" (Groundcover) - Light Requirements: Sun - Soil & Water Preferences: Average - Dry - Quantity: 500 Seeds - Other: Verbena Has A Lovely Fragrance, And Is A Very Popular Scent For Candles, Perfumes, Etc. Butterflies Love It Too!