- Name: African Flag - Other Common Names: African Cornflag - Scientific Name: Chasmanthe Floribunda - Color: Bright Orange Red - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Plant Height: 4 - 5' - Plant Spacing: 6 - 9" - Bloom Time: Winter / Early Spring - Hardiness Zone: 8 - 11 - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Dry - Quantity: 5 Seeds - Other: More Info Coming Soon.