One of the "blackest" of the cactus dahlias, Black Narcissus puts drama in any border with its huge, spiky flowers. One fo the best dahlias you can grow but if deep maroon/blacks are not for you take a look the rest our dahlias for sale.
Black Narcissus is a big dahlia. It will reach 120 cm and in the right conditions can touch 150 cm and it will bush out to between 60 - 80 cm . So it needs a bit of space. It also has large flower heads - especially if you pinch out the side buds. Its stems are strong, but the heads can get very heavy - for example after rain - and break easily in a wind. So keep this dahlia in a sheltered spot and stake it very well. Also great in your cutting garden but probably a bit too big for all but the largest containers