What does it mean when an artichoke is purple?
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The "vegetable" that we eat is actually the plant's flower bud. If allowed to flower, the blossoms measure up to seven inches in diameter and are a beautiful violet-blue color. There are more than 140 artichoke varieties but less than 40 are grown commercially..
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Purple is formed by mixing red and blue in a ratio close to 1:1, whereas violet is perceived by your eyes as containing more blue than red. ... You can have a source of monochromatic violet light (i.e. a source producing just a single wavelength), but everything that looks purple must emit both red and blue light..
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