Plant Problems Symptoms: Brown, yellow or burnt tips/edges

Problem: A cannabis copper deficiency appears with leaf symptoms such as dark leaves that take on blue or even purple undertones. The tips and edges of leaves turn pale yellow or white in stark contrast to the rest of the leaves which have turned dark. In flowering it's important to correct a cannabis copper deficiency as...
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by Nebula Haze Do Your Marijuana Leaves Have Nutrient Burn? Quick Summary: Nutrient burn is one of the most common beginner cannabis growing problems. The yellow or brown leaf tips are caused by too-high levels of nutrients accumulating in the leaves. (Nutrient burn is often called "Nute Burn" in the cannabis growing community). When the roots take in more nutrients...
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Problem: Dark green leaves, shiny leaves, clawing, weak stems, and overall slow growth. Marijuana leaves that are nitrogen toxic often get "The Claw" or talon-like leaves that are bent at the ends. They also do an odd curving (or cupping) that is often mistaken for overwatering, but is unique to nitrogen toxicity. You can see a "clawing" leaf pictured...
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by Nebula Haze Cannabis Leaf Problem / Symptoms: With a marijuana potassium deficiency, you'll generally see symptoms on older leaves, but not always. Sometimes you'll see the symptoms at the top of the plant. Leaves with a potassium deficiency get yellow, brown, or burnt tips around the edges and tips. The burnt edges may look a little...
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Problem: Your cannabis plant can only withstand a certain amount of heat and light. After a certain point, your cannabis will start exhibiting signs of stress on the leaves near the sources of light and/or heat. Your leaves will get yellow or brown brown spotting and may appear generally burnt in places when there's too...
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