I wanted to add color to the rose so I used food coloring. I thought the leaves were pretty enough without coloring the bacon and the potato but I did both so you can make your rose the way you like it. I tried to color the potato's in colored water but they did not turn out very well, so instead I put a dot of food coloring on a plate and used my finger to color the bacon, leaves and potato. The next time I make these I will just color the leaves. I think the leaves will be enough color to compliment the rose.