Allium nigrum – (Black Garlic)


A popular allium bearing large round white flower heads on longish stems.

Out of stock


Allium Nigrum is a popular flower for the home garden and also is used in public gardens, after its debut into the limelight at the Chelsea Flower Show where it featured in a recent show planting, and was greatly admired.

Allium Nigrum has large  white, or sometimes cream or pale lilac, starry tennis ball sized clusters of flowers . The flowers, 8 – 10 cm each, have dark green centre and when in full bloom the scapes can reach 60 cm tall. It blooms in late spring to early summer, after the large grey-green leaves are starting to die down, and the flowers are attractive to butterflies. The blooms are long lasting and impressive,  and in large groups it is spectacular. It grows best in rich sandy to gritty soils which are well drained.

Note: 10 seeds in packet


Sowing advice

Sow seeds at any time covering them with compost or grit 5mm deep, keeping the seed pot in a cool, well-lit spot outdoors. Artificial heat is not needed and can prevent germination so be very patient as many species will only germinate in the spring after chilling or freezing in the moist seed tray in the winter. Grow on individual seedlings in small pots until of sufficient size to be potted on or planted out into the open ground.

Additional information


Hardy Perennial

Common Name

Allium Multibulbosum, Black Garlic, Broadleaf Garlic

Maximum Height

60 cm

Number of seeds in packet