The Iowa Gardener: Friend or foe? When it comes to tiger lilies, it depends Lifestyles thegazette.com Zone 9 Planting Schedule What to Start Each Month Gardening Know How Tall Modern Planter Pot, Tapered Cylinder Design Eureka Farms Planters Flower Pots + Garden Planters Terrain 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 Cascading Plants That Spill Over Pots, Beds, Walls & Borders Gardening Know How