To start, it is possible to turn marijuana purple by lowering the temperatures in your grow room during the flowering stage of growth. In some cases it can be simpler than that and won’t require anything. In others, turning your weed purple won’t be possible.
Now, you can turn weed whatever color you want using food coloring, but we don’t recommend this method and it won’t increase the potency of your bud. Many florists dye their flowers different colors by simply adding food coloring to the water they are sitting in after they have been cut. Right after you cut down one of your plants, you could stick the branches in colored or even flavored water to produce a similar effect. We might be more inclined to experiment with flavors over anything else, but we still do not recommend messing with your bud in this manner. Remember, it won’t increase the potency and purple pot doesn’t necessarily guarantee high potency either.
The reason some strains of marijuana turn purple is the same reason why some trees leaves turn colors in the fall, why red grapes are purple, why a blood orange is so red, why an eggplant is purple, why blueberries are blue, and why black raspberries are black. This phenomenon is caused by the occurrence of something known as anthocyanin accumulation which causes anthocyanin to build up within plants. While chlorophyll is what gives weed and plants in general their green color, anthocyanin is what makes weed purple, and carotenoid is what will make weed yellow or gold. CLICK HERE FOR MORE GROW GUIDES
If your plant has the genetics which make it prone to anthocyanin accumulation, you can make it turn purple by dropping the temperatures in the growing environment down below 50 degrees Fahrenheit when the light is off. During flower you should be on a 12-12 cycle or something very close. Some plants will turn purple without such a drastic drop in temperatures, and like I said before, for some plants it just isn’t possible.
You can also experiment with nutrients from your local hydroponic supply store. They may have something that can turn any weed purple, but we have not had the time to test all of these products.
In the end, you need to realize that turning your weed purple won’t make it any better. The reason that most purple bud is so good is because the people who have been growing pot long enough to master the trick of turning bud purple don’t want to mess around growing anything but the dankest of headies. On the other hand, you may have smoked purple bud which was not very good at all. Some strains will turn purple no matter what you do to them, and an inexperienced grower could have grown some Mexican brick weed quality ganja which just happens to be purple. Definitely quite unlikely though.
If you choose to try your luck at turning your plants purple, just remember several things. First, look for the purpling to occur about two weeks before you plan to harvest. This could be anywhere from about 7 to 10 weeks into the flowering stage of growth. And, with this in mind, don’t do the temperature drop at night until the plant is in flowering, even up to 3 to 4 weeks after. Your plant will turn purple before you intend it to, which is one of the plants signs that it is being stressed. The cold temperatures are stressful on your plant, and as a result will likely result in a slightly smaller yield of slightly smaller quality than if you hadn’t dropped the temperature every night. If you’ve read this far into the article, you’re probably very adamant about turning your weed purple, and nothing I say will convince you otherwise. So, I’m not going to try.
Good luck in your endeavors. Follow our directions and if the cards are in your favor you will get purple weed. Remember, it is partially controlled by genetics so don’t give up if you don’t succeed on your first try. And, when you harvest your plants, feel free to send us a sample. Thanks.