I would mix them, I think variety adds more color in life, so it definitely applies here...
actually, no, what do they say?
They would be red for passion, my wife is far from innocent to get white roses (one of the reasons I married her )
1 red 1 white and 1 with both red and white. red for the love, white for how pure it is, and the mixed one to symbolize how harmonious it can be <3... (im such a love dork)
Both red and white to show their significance.
I like to go classic red. Isn't white for someone who died? haha
Red...white means the end of the relationship