- Name: Dwarf Unicorn Plant - Other Common Names: Short Unicorn Plant / Devil's Claw / Devil's Horn / Ram's Horn - Scientific Name: Proboscidea Sp. - Color: White Flowers / Dark Blue Berries - Plant Seeds: Indoors Before Last Frost / Outdoors After Danger Of Frost - Bloom Time: Aug - Oct - Hardiness Zone: Annual / Tender Perennial - Plant Height: 24 - 36" - Plant Spacing: 24 - 36" - Light Requirements: Sun - Soil & Water Preferences: Average - Quantity: 10 Seeds - Other: More Info Coming Soon.