Planting Instructions for Hibiscus Flower Seeds Nigella is one of those flowers that actually prefers the cool soil of early spring. In Zone 6b, I start sowing my nigella seeds in late winter and continue sowing through early Modern Ceramic Glazed Pots and Planters Flora Grubb Gardens Plant Nursery Burpee All Seasons Organic Cabbage Seeds Green, 1 ct Fred Meyer The Iowa Gardener: Friend or foe? When it comes to tiger lilies, it depends Lifestyles thegazette.com