The Rainbow roses were shaped by Dutch flower company owner Peter VanDe Werken, who formed them by developing a method for injecting natural pigments into their stems while they are growing to make a striking multicolored petal effects. The dye are produced from natural plant extracts and absorbed by the flowers as they grow. A particular procedure then controls how much color reaches each petal- with stunning results. By treating the stalk with natural pigments, Van De Werken has managed to make each petal a different color. The pigment is absorbed and travels to the petals where it modifies their hue.