Even though there are not a truly 'black' rose in the rose family, people are fascinated with the dark red roses with 'black' buds and 'black' shadings on their petals.
So the rose growers continue to introduce new 'black' red varieties all the time. One day we will probably see a truly 'black' rose on the market. That rose breeder will make some cool money on his invention, as it will be a very hot selling rose.
The 'Black Magic' Rose is most likely the most popular red 'black' rose on the market today. The buds on this
rose are very 'black', so if you like a real 'black' flower arrangement, you could cut the 'Black Magic' roses when
they are in bud form, before they open fully.
They appear to be more black in cool weather, so if you live in that type of climate you will have more black shadings in the roses.