- Name: Red Garnet Amaranthus - Other Common Names: Vegetable Amaranth / Joseph’s Coat / Summer Poinsettia / Chinese Spinach - Scientific Name: Amaranthus Tricolor - Color: Red Flowers & Red Leaves - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Harvest: 50 Days - Hardiness Zones: 8 - 11 - Plant Height: 36 - 48” - Plant Spacing: 24 - 36” - Light Requirements: Sun - Soil & Water Preferences: Average - Quantity: 500 Seeds - Other: This Variety Of Amaranthus Is Edible. Its Leaves Can Be Uséd To Add A Splash Of Color In Salad Greens Or Cooked.