Nigella are upright, bushy annuals boasting blue or white flowers in summer. The pretty blossoms are borne atop stems clad with finely-cut, feathery foliage that forms a mist around them. They are followed by decorative, balloon-shaped, seed capsules that are terrific for dried flower arrangements. These cool weather annuals are easy to grow, low care and trouble-free. They look good in the garden, even when the plants are not in bloom, thanks to their handsome foliage and interesting seedpods. They are charming additions to mixed beds and borders, cottage gardens or containers.