https://animalcrossingpocketcamp.gamepedia.com/Gardening/Cross-Pollination#Black_Tulips -- how do you verify the tulip is pure black? The section says, essentially: "Use O/B on O/W. Half of black tulips you get will be B/B. The End."
I believe the Pink tulip section is flawed. It claims crossing Pink/White with Pink/White will result in 50% pure Pink seeds, but this cannot be the case. It should only be 22.5% pure Pink, with the other 45% being Pink/White. This combination would also result in 6.75% White/White, and 15.75% Black/White. Leedum (talk) 02:32, 13 July 2020 (UTC)Leedum, 7/12/2020