marijuana purple stem (2023)

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Causes of Purple Stems in Cannabis

What does purple stem mean? Purple stems may indicate that your plant will grow slowly, with buds forming slowly and smaller and less developed. Purple stems, stems, and petioles may indicateNutrients in Cannabis, root zone pH, plant health or environmental issues in the grow room.

genetics

When marijuana purple stem is caused by genetics, the plant will function normally and appear healthy. In other words, if the plant isn't showing any other signs of distress, the pigmentation may be part of its genetic makeup. There are many cannabis genetics available, and many of these varieties can develop purple or red pigmentation.

temperature

After extreme temperature changes,purple stem yellow leavesmay appear. Cannabis plants grown outdoors in daytime temperatures (80°F) and nighttime temperatures (50°F) may develop red or purple stems due to sudden temperature changes. Let's say an indoor gardener notices purple stem cannabis due to temperature changes. In this case, they may need to control the temperature of the dark cycle to not be 10-15 degrees cooler than the light cycle. Temperature fluctuations in indoor gardens can eventually lead to more serious humidity problems.

Pathogen

Fungi like Fusarium and Botrytis can change the color of plant stems and leaves. Fusarium attacks the stems of young plants, eventually causing them to fall or "wet." Sometimes it causes the stems to appear dark brown, red, or lavender. in turn,BotrytisAffects larger plants, causing them to die from robbing nutrients.FusariumBotrytis can spread from plant to plant and should be treated as soon as possible.

light intensity

Another reason for the purple stems of cannabis is the intensity of the light. When bright light hits your plants directly, their stems may turn purple. If insufficient light intensity is the cause, the lower stems of the plant will usually appear greener. Coloration in bright light is a natural plant defense mechanism that protects plants from UV damage.

Indoor gardeners who use LEDs or lighting systems with high UV output are more likely to experience this.

find the perfectCannabis photoperiodmake sure there is no lighting

pressure

Cannabis plants respond to stress in several ways. Discolored stems may indicatetransplant shock, heat stress, overwatering or pest infestation. So, if you notice purple stems, it's important to pinpoint the source of the discoloration. Here is a list of potential stressors that can cause red stalks in cannabis:

• temperature or humidity issues: If you feel that the temperature or humidity level in your grow room is not right, this may cause the stems of your cannabis plants to turn purple. If you suspect temperature and humidity are stressing your plants, make the necessary adjustments.
  
• marijuana pests: Certain cannabis varieties are more susceptible to pests and plagues than others. If your plants have discolored stems, damaged leaves, stunted growth, and signs of mold, small insects, or spiders, you must act quickly.
  
• light pressure or heat pressure: Leaving grow lights close to plants can also cause red stems. No matter what the weather is like! Some strains are more susceptible to stress than others, but almost all plants have a maximum light level. Even with low temperatures, plants can be stressed by light levels in the same way that a skier gets sunburned in the cold. Because too much light can cause stems to turn red and other symptoms of stress, it's best to keep grow lights within the manufacturer's recommended distance. Especially LED plant growth lights, because of thephotoburn in plantsIf you get too close.

Nutrient deficiency

Nutrient deficiencies can cause a variety of symptoms, including yellowing or drying new and old leaves and purple stems on fan leaves. Red and purple stems, followed by brown, dry leaves, are early signs of phosphorus deficiency. Conversely, a magnesium deficiency can cause red stems to appear on the fan leaves. Remember, these nutrient deficiencies don't just cause stem discoloration; they also causegrowth retardation, damaged foliage, and other symptoms.

use our guidemarijuana deficiencyIdentify the type of defect affecting the plant and correct it as soon as possible.

pH

Getting the pH of your soil and nutrient solutions just right for healthy plants is critical. Unfortunately, this is also a problem for most growers. Cannabis likes slightly acidic soil (we recommend keeping it at 6.5 for best results). If your soil is too acidic or alkaline, your plants may lose healthy foliage and develop nutrient deficiencies as they struggle to absorb nutrients from your fertilizer. If your plants have red or purple stems or other signs of nutritional problems, check your pH. We recommend purchasing a pH and conductivity tester to get a good idea of ​​your soil's pH. These devices provide accurate readings of soil pH and nutrient conductivity, giving you an idea of ​​how well your plants are absorbing fertilizer.

Cannabis red stalk solutions

1. once you are surepH problemresults in purple stems, which is what you should do. First, start preparing your nutrient solution. Check the pH of the nutrient solution with pH drops or a digital pH pen; it should be between 6.0-7.0 when growing in soil and 5.5-6.5 when growing in hydro and coir. When the pH is very high or too low, modify it with any pH Up or pH Down and verify it again until it is in the desired range. If you still have problems, the problem is with the substrate, so rinse for a few days and then feed constantly, usually with a pH nutrient solution.
   
2. if you haveNutritional deficiency(phosphorus and magnesium), use slow-release nutrients or grow in super soil that has all the nutrients your plants need from seed to harvest. Make sure to fertilize your plants right away, or look for fertilizers that contain phosphorus and magnesium to avoid this.
   
3. light intensity– if your plant is showingred stemNot exactly healthy though, dim the lights or change the height and keep an eye on their development. If the problem persists, keep changing the height of the lights until the plants are thriving.

Purple cannabis stems are not a major cause for concern. If your plants start to develop discolored stems, keep an eye on them and look for other signs that the discoloration is not caused by genetics or light.