Placement and use
Use Nigella damascena in small drifts through a sunny border, along the middle of a mixed bed, or near a walkway where its finely divided foliage can soften harder edges. Keep it behind very low edging plants but in front of taller summer growers that will take over as its early-season display fades. It also suits containers, provided the planting is not crowded and spent plants can be removed without disturbing neighboring roots.[1][2]