- Name: Royal Palm - Other Common Names: Florida Royal Palm / Cuban Royal Palm - Scientific Name: Roystonea Regia - Color: Creamy White - Yellow Flowers / Red - Black Ornamental Berries - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Plant Height: 50 - 70' + - Plant Spacing: 10 - 15' - Bloom Time: Year Round, Main Bloom Time Is Summer - Hardiness Zone: 10 - 11 / Houseplant - Light Requirements: Sun (Part Shade) - Soil & Water Preferences: Average - Quantity: 10 Seeds