Answer:
Its 4 red: 0 white
Explanation:
look at a RrRr punnet square, then it shows the ratio.
R R
r Rr Rr
r Rr Rr
the square shows that all the plants will be red because if a trait is recessive, it needs to be shown in both parents for the offspring to have it. All offspring will carry this trait, but it will not show.