Purple Mr. Nice. is a cross between Granddaddy Purple and Mr. Nice. Some users have reported that this strain is extremely potent and perfect if you are wanting to relax and alleviate stress. This herb is bright green in color and the taste will wake you up the first time you consume it as itâ€™s very sour. The first hit will ease the pain but you will still be able to function. Two or more hits will leave you in a more sedative state.