Classic Succulent Garden By Winston Flowers Elegant Floral Arrangments Local Flower Arrangments Amazon.com : Seed Needs Sage Seeds for Planting Broad Leaved Herbs Non GMO Heirloom & Untreated Culinary Herb Seed to Plant a Home Grown Garden Indoors or Outdoors (1 Pack) : Herb Succulents Depot Wide Variety at Low Prices Cactus Best Rated 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