Blush is the first plant growth regulator specifically developed to bring out the red in Fuji, Gala, Honeycrisp, McIntosh, Paulared, Pink Lady and other bi-color apple varieties. Featuring the active ingredient prohydrojasmon (PDJ), Blush promotes red fruit coloration by increasing anthocyanin, the naturally occurring red pigment found in apples. The result: redder, more marketable apples, allowing you to harvest a higher percentage of premium first-pick fruit.