It is often triggered by heat and/or lack of bubbles near the roots. Root rot can cause curling leaves and brown patches as well as sometimes other nutrient deficiencies. If a plant stays in the same container for too long, the roots will eventually start wrapping around the edges of the pot.
This is known as being “rootbound” and causes symptoms similar to other root problems. A rootbound plant has been in the same container for too long. Rootbound plants often droop, appear yellow, get nutrient deficiencies, and stay small. If you see tons of white roots when transplanted, that means the plant was in that container too long. When this happens, the main solution is to transplant the plant into a bigger container. Another solution is to grow in fabric pots or air pots. These types of pots let air in from the sides, killing the circling roots (“air-pruning” them) and prevents the plant from getting rootbound for months. To help a rootbound plant, transplant to a bigger container with fresh potting mix.
Or start with air pots or fabric pots in order to prevent plants from getting rootbound at all. If plants are experiencing a lot of heat, it can make leaves droop and/or curl. Some strains can handle a lot of heat, while other strains tend to droop when it gets warm. Plants can get light burn (sort of like a sunburn) even if the temperature is completely under control. The symptoms are usually concentrated close to the grow lights. Sometimes this can cause leaves to claw and curl downwards. Light burn can cause the leaves closest to the light to turn yellow. Often a bug infestation caused general plant unhappiness, but these are some of the most likely to cause curling or clawing leaves. Usually, you can’t see broad mites because they live inside the plant. The main symptom of an infestation is strange leaf curling that is specific to this pest, as well as “wet” looking leaves. Hemp russet mites can also cause drooping and other strange symptoms, but the bugs are so small many growers don’t realize what they’re dealing with. Hemp russet mites cause drooping and yellow mold-like growth on the tops of plants. Fungus gnats look like tiny flies buzzing around your topsoil. Although a few fungus gnats won’t really hurt your plants, a big infestation can damage the roots, causing symptoms similar to other types of root problems. Guanos — the excrement from birds and bats — are among nature's best! Particularly high in nitrogen and phosphorus, guano fertilizers are excellent for use around fruiting and flowering plants. They're also high in trace minerals, providing well-rounded nutrition and they're great for making growth-boosting liquid teas! ALL are harvested under strict, preservation guidelines to avoid disruptions to creatures and habitat. Budswel (0-7-0) Use to boost production in fruit trees and fruiting and flowering plants. Desert Bat (8-2-1) Chock-full of nutrition, this all purpose plant food is one of the best available. Fossilized Seabird (0-9-0) Promotes healthy root growth and bud development — great for ALL flowering plants! High Phosphorus (0-5-0) Delivers spectacular flower set, sweeter tasting fruit and multiple bud set. Indonesian (0-7-0) High phosphorus numbers (7%) encourage multiple blooms and hardy roots. Insect Frass (2-2-2) A 100% vegan plant food made from the excrement and exoskeletons of insects.
Jamaican (0-10-0) Top dress around plants to encourage strong root and flower development. Use this superior blend as needed for spectacular crops and huge yields. Madagascan (0-13-0) Hand harvested and carefully sourced for quality! Mexican (8-1-1) An excellent source of nitrogen (8%) that boosts leaf growth and overall vigor. NITRO (9-3-1) Encourages vigorous growth and is fast acting for quick results in all plants. Peruvian Seabird (10-10-1) Unsurpassed for accelerating plant growth and improving vegetative health.
Peruvian Seabird (12-11-2) Pelletized for less mess and completely free of any chemical additives. PHOS (0-7-0) Carefully sourced for quality and harvested using earth-friendly methods. Premium Bat (7-3-1) An immediate source of organic nitrogen (7%), plus beneficial microbes. Formulated to encourage a profusion of flowers and abundant yields.