What Makes Marijuana Turn Purple?
QUESTION: I love purple weed. You love purple weed. Who doesn’t love purple weed? But what I don’t understand is what makes marijuana turn purple? I have heard all types of ideas about how to make buds turn purple. Outdoor growers say frost has something to do with it, indoors growers say they force feed them nitrogen and that does the trick. I am growing BLUEBERRY which I’ve heard has purple in it already. Can I enhance the color some how?
MEL THOMAS: I hear purple weed is really popular in Northern California. But what makes marijuana turn purple? Purple coloring in cannabis plants that have a genetic predisposition toward it is triggered by temperature changes in the fall. The green chlorophyll color usually masks any other colors, but tends to break down late in the season and a pigment known as anthocyanin begins to show through. For purple color to develop a strain must have the genetic potential to produce anthocyanin pigments. However, the purple weed color you’re talking about might never be shown if environmental conditions don’t cause the chlorophyll to breakdown. Kush strains tend to develop purple coloration when subjected to low night temperatures during the end of their life cycles and plants with heavy traits of the Hindu Kush plant, produce some of the darkest tones found in any marijuana strain. Nitrogen will not induce color change, unless you over fertilize and they go crispy brown!
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