They can turn it a variety of colors, including red, gold, dark green, blue, or black. The color of cannabis all depends on the genetics of the plant itself and how it is grown. Certain conditions influence the actual color and stability of anthocyanin pigments. Temperature, light, pH, and structure all play influential roles.
Just as leaves change color in the fall, cannabis leaves can change color as the plant reaches maturity. If you imagine a cannabis plant growing in nature, this would also happen in fall as the temperature decreases, and the nights become longer. Cold temperatures cause chlorophyll to break down, and this is what allows the other glorious colors to shine through. Some specific strains have naturally high anthocyanin levels. Under certain conditions, such as entering into the “winter” cycle of flowering, these strains reveal their beautiful purplish hues. This is a natural occurrence determined by a combination of the plant’s genetics and external environmental factors. Anthocyanins belong to the flavonoid group of phytochemicals. Flavonoids are a type of plant chemical which is commonly found in fruits, vegetables, cereals, teas, and nuts.
They are also abundant in cannabis plants, along with two other types of compounds – cannabinoids and terpenes. As well as giving plants their vibrant colors, anthocyanins are also thought to have certain health benefits. According to Khoo et al., “Scientific studies, such as cell culture studies, animal models, and human clinical trials, show that anthocyanidins and anthocyanins possess antioxidative and antimicrobial activities, improve visual and neurological health, and protect against various non-communicable diseases.” Flavonoids, including anthocyanins, have been reported to have anti-inflammatory and antioxidant effects. Anthocyanins could potentially provide a wealth of benefits. They may play a role in protecting the heart and liver, improving vision, as well as helping to prevent obesity and diabetes. Many plants with high anthocyanin contents have been used as herbal medicines for millennia. Ancient societies from North America, Europe, and China have taken advantage of these naturally occurring remedies in the past. So, with this in mind, is purple weed better for you than the green stuff? The digestive tract absorbs the majority of anthocyanins. Therefore, to notice any significant difference, you would have to eat a ton of edibles. There is a lot of different, sometimes conflicting, information out there on how to grow purple weed. It is not as simple as some people would make it sound. Do it wrong, and you could end up damaging your cannabis plants and ruining your yield. So, if you want to grow purple marijuana for yourself, you will need to know the facts. Making weed turn purple is down to a combination of environment and genetics. Some strains of cannabis will easily turn a beautiful shade of purple. However, others will stay green no matter how hard you try. To successfully grow purple marijuana, choose a strain that is high in anthocyanins. Finding one that has “purple” in its name is a pretty good starting point. Some of the best purple cannabis strains include: MYTH – You Can Turn Weed Purple by Depriving It of Nutrients.
Many people believe that cannabis leaves turn purple when the plant is stressed. Otherwise, they think that denying the plant nutrients, such as oxygen, carbon dioxide, and nitrogen, can force it to change its color. However, like people, plants need nutrients to survive. If you take these away, your plant will soon become sick and die. Cold breaks down chlorophyll and allows anthocyanins to become dominant, giving weed a purple hue. Exposing your cannabis plants to cold temperatures can make the leaves change color. But only if you have a strain which is genetically programmed to do so (see above).
You need to be very careful, as extreme cold will damage your plant, and could even cause it to die. You need to gradually reduce the temperature during the dark cycle as your plants get close to harvest time. A nighttime temperature of 50°F/10°C is ideal but reduce the temperature slowly to avoid shocking your plants. Monitor them carefully, and only do this just before harvesting. Keeping your plants cold for too long could reduce your yield.