Black Rose

The truth is black roses is not exactly black, they are the darkest red which look black.

This luxurious rose is a very deep shade of red and although it is not true black, the black baccara rose is the closest to black that naturally exists in the world of roses. There are other varieties of black roses, such as black magic and black beauty, but Post-a-Rose. only use Black Baccara.

Is it good to present or wish someone with  black rose?

-> Presenting and Wishing someone black roses would mean Rude or may be bad because it may be considered as the death of a relationship or idea. Some, however, suggest that black roses could symbolize rebirth or the beginning of something new. this is all about individual's thought.

Each individual community or person or region have their own belife about black rose. Some Example Movies and TV serial Examples are as below{Below Content taken from wikipedia}

In the Night World series, the black rose is the symbol for made vampires, as opposed to the black iris for lamia (or born vampires).

In Revenge (Season 2, Episode 18), black roses are a symbol for dying love.

"Black Rose" is the title of the background music for a level in Eternal Darkness: Sanity's Requiem. [1] "Black Rose" is probably the name of the mansion, the symbol of mystery.

In the Babylon 5 episode "Passing Through Gethsemane", a black rose is given to a monk as a symbol of death, and later placed in the mouth of a murdered woman.

In MTV Splitsvilla's seventh season, black roses are given to girls to eliminate them from the show.

In "American Horror Story: Murder House" Tate gifts Violet a black rose stating that she doesn't like "normal things."

"Black Rose" is the name of a pirate-themed pinball machine produced by Bally in July 1992.

And Black rose was a hit single song from Rock band Thin Lizzy and was the title for an album. Lead singer and bass player Phil Lynott was into Irish mythology and claims the black was inspired by Irish mythology. 

A black rose is a sign of many things. Hope, grief, rebellion, and death are just a few of its connotations.

Black roses are symbols featured in fiction with many different meanings and titles such as black velvet rose, black magic, black beauty, Tuscany superb, black jade. The roses commonly called black roses are technically a very dark shade of red, purple or maroon.