The appearance of Marijuana Leaves Turning Yellow on your cannabis plant can be concerning, but it’s usually due to common issues that are easy to address. With a keen eye and prompt action, you can prevent damage to your plant. Here’s our guide to resolving these problems.

We all strive for vibrant, green leaves on our cannabis plants, indicating their health. However, if you notice Marijuana Leaves Turning Yellow, it may raise alarms. Fortunately, this isn’t usually a death sentence for your plants. With some attention and knowledge, you can swiftly address these issues. Let’s dive in.

Marijuana Leaves Turning Yellow : Identifiying The Issue

Marijuana Leaves Turning Yellow, known as chlorosis, signals a loss of chlorophyll in the leaves. While seasoned growers may recognize various plant problems quickly, novices might take longer. Patience is key. Your plant will exhibit telltale signs that require attention for diagnosis. Identifying the problem promptly provides more options for resolution.

When To Not Worry

Removing yellow leaves isn’t recommended, as they contribute to plant health, especially in younger plants. Towards the end of the flowering cycle, yellowing is natural (senescence) and doesn’t indicate a problem.

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Common Causses Of Yellowing Leaves

Marijuana Leaves Turning Yellow : pH Imbalance

Maintaining the right pH level is crucial for nutrient absorption. Nutrient lockout occurs when pH levels are off, hindering nutrient uptake and potentially damaging the plant.

• Recognizing pH Imbalance: Marijuana Leaves Turning Yellow, surface patches, and leaf edge burning.
• Treating pH Imbalance: Test substrate pH and adjust using pH up/down solutions.
• Preventing pH Imbalance: Regularly test and maintain optimal pH levels.

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Marijuana Leaves Turning Yellow : Temperature Issues

Extreme temperatures, either too hot or too cold, can harm plants, indoors or outdoors.

• Recognizing Temperature Issues: Discolored, curled leaves, wilting due to heat or cold stress.
• Treating Temperature Issues: Adjust lighting, provide shade or warmth as needed.
• Preventing Temperature Issues: Ensure proper air circulation and temperature control.

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Marijuana Leaves Turning Yellow : Light Burn/Bleaching

Excessive light, often due to improper placement of grow lights, can cause light burn.

• Recognizing Light Burns: Yellowing starts near light source, with leaves difficult to remove.
• Treating Light Burns: Adjust light distance as per manufacturer’s instructions.
• Preventing Light Burns: Ensure proper light placement and distance.

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Uunder/Overwatering

Incorrect watering, either too much or too little, can lead to leaf yellowing and wilting.

• Recognizing Watering Issues: Yellowing, weak leaves for under watering; drooping, firm leaves for overwatering.
• Treating Watering Issues: Adjust watering accordingly.
• Preventing Watering Issues: Maintain a consistent watering schedule, check soil moisture regularly.
  

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Root Rot

Overwatering can lead to root rot, causing roots to rot and emit a foul smell.

• Recognizing Root Rot: Yellowing leaves, slimy, brown roots with unpleasant odor.
• Treating Root Rot: Reduce watering, introduce beneficial microbes to combat infection.
• Preventing Root Rot: Maintain proper watering practices, ensure good drainage.
  
  
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Pest Invasion

Pests feeding on plant material can cause yellowing leaves and other symptoms.

• Recognizing Pest Invasion: Pests visible on leaves, yellowing and shriveling.
• Treating Pest Invasion: Use pesticides or natural remedies, introduce predator insects.
• Preventing Pest Invasion: Maintain plant placement, use preventive measures like neem oil.

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Leaf Septoria

A fungal infection causing dark spots, yellowing, and wilting of leaves.

• Recognizing Leaf Septoria: Dark spots on leaves turning yellow.
• Treating Leaf Septoria: Remove infected foliage, use neem oil foliar spray.
• Preventing Leaf Septoria: Ensure proper air circulation, control humidity.

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Over/Under Fertilization

Incorrect fertilizer usage can lead to nutrient burn or deficiency, causing leaf yellowing.

• Recognizing Fertilization Issues: Curled, yellowed leaves (overfertilization); dried, yellowed leaves (under fertilization).
• Treating Fertilization Issues: Follow fertilizer instructions, address deficiencies.
• Preventing Fertilization Issues: Apply fertilizers at the right time and dosage.

By addressing these common issues promptly and effectively, you can ensure your cannabis plants thrive. Monitoring your plants throughout their growth cycle enhances your skills as a grower, preparing you for future projects. Don’t let yellow leaves discourage you; with knowledge and care, you’ll overcome any challenges.