This nigella mix brings a unique look and texture to any garden - along with beneficial pollinators! Nigella has spiky foliage and grows wily little seed pods on top of their delicate flowers. Reaching up to 18 inches tall, nigella is great for filling out borders or standing out as an intriguing centerpiece. This mix of white, pink, and blue flowers will stay in bloom for 12-14 weeks in the spring and summer.