Several species are grown as ornamental plants in gardens. Nigella damascena has been grown in English cottage gardens since the Elizabethan era, commonly called love-in-a-mist. Nigella hispanica is a taller species with larger blue flowers, red stamens, and grey leaves. Nigella seeds are self-sowing if the seed pods are left to mature.
The dried seed capsules can also be used in flower arrangements.
The species grow to 20–90 cm (8–35 in) tall, with finely divided leaves; the leaf segments are narrowly linear to threadlike. The flowers are white, yellow, pink, pale blue or pale purple, with five to ten petals. The fruit is a capsule composed of several united follicles, each containing numerous seeds; in some species.
The seeds of Nigella, known as kalonji, black cumin, black onion seed, onion seed or just nigella, are used as a spice and a condiment in Pakistani cuisine, Ethiopian cuisine, Middle Eastern and Polish cuisines.
This plant is useful.
How to get rid of: