Nigella Flower Zone. In Zones 8-11 in the warmest part of the country this tropical is a perennial. Growing season should be sown 3 to 4 times in 2-3 weeks to get continuous flowering.
It grows quickly and easily from seed. 8 to 20 inches 20 to 50 cm. 26052021 The nigella plant performs well between 65 72.
Cover with light soil for germination success keep the soil moist until the time of seed germination.
The flowers come in white pale and dark blue pale and deep pink and even purple. They can be used in flower. 07122020 Flowers of growing Nigella are surrounded by a series of bracts. The plant has beautiful showy flowers surrounded by unusual thread-like leaves.