6 Mistakes to Avoid If You're Growing Perennials in Pots 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 Camellia Sinensis Plant Life Cycle Poster North American Wildflower Seeds, 24 Variety, 3oz Homegrown Garden Hoya sp. AH 556 (Seeds 002) (3.5" pot) 50 Pcs Cat's eye dazzle flower Red Cat Face flower Seeds