Is purple cauliflower man made?

Online Answer
Everything You Need to Know About Purple Cauliflower. Yes, the color is completely natural.
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It has a much higher vitamin and mineral content, containing considerable amounts of Vitamin C as well as calcium and iron. Also it's much easier to grow, doesn't require blanching for whiteness (the heads are purple when raw but turn emerald-green when cooked) and maintains its quality a long time after the harvest.Nov 14, 1987.
The edible portion of the cauliflower plant is the round head of compact flower buds called the "curd." The purple color in cauliflower is caused by the presence of anthocyanin, which is a harmless, water-soluble pigment in the curd. Sun exposure exaggerates its effect on the developing cauliflower head.
Spread the leaves apart until you can see the purple leaves down in the center of the artichoke. ... Under those purple leaves is the fuzzy choke, which you also remove. After the artichoke is cooked you can scoop out the choke, revealing the artichoke bottom, which is the best part.