- Name: Orange Marmalade Crossandra - Other Common Names: Firecracker Flower / Firecracker Plant - Scientific Name: Crossandra Infundibuliformis - Color: Orange - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Plant Height: 18 - 24" - Plant Spacing: 18 - 24" - Bloom Time: Spring – Fall - Hardiness Zone: 9 - 12 / Popular Annual / Houseplant - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Quantity: 10 Seeds