Old Plant Doctor

Use our cannabis growing problem pictures and interactive plant doctor tool to quickly diagnose sick marijuana plants. Click the pictures below to learn about a marijuana problem, deficiency or symptom & get the solution. Paramount Seed Farms’ cannabis plant doctor will help you solve your cannabis plant problems. Below is a picture guide to diagnose and remedy your cannabis plant problems.

Click your cannabis plant symptom(s) below to find the most likely plant problem, then click to learn how to fix the issue.



Growing marijuana can be challenging, especially when it comes to recognizing signs of plant stress. Leaf symptoms are among the most common indicators and understanding what they mean is essential for successful cultivation. Nutrient deficiencies, pest infestations, and light stress are the most common problems that marijuana growers face. In this article, we will discuss the marijuana leaf symptoms associated with each of these issues, so you can identify and address them quickly.

Nutrient Deficiencies:
– Leaves may appear yellow or pale
– Curled or wilted leaves
– Stems may look weak or brittle

Pest Infestations:
– Discolored spots on leaves
– Holes in leaves
– Damaged stems or flowers

Light Stress:
– Leaves may appear bleached or burned
– Curled or drooping leaves
– Stunted growth

By understanding the symptoms of plant stress, you can take steps to ensure your marijuana plants are healthy and thriving. Be sure to check your plants regularly and take action as soon as you notice any of the above signs. This will help you to create a successful and rewarding harvest.

How to Address Marijuana Leaf Symptoms?

It can be concerning to notice symptoms on your marijuana leaves, but luckily there are many potential solutions! In order to determine the best course of action, it’s important to first identify the underlying cause. Here are some common solutions to address marijuana leaf symptoms:

Nutrient Deficiencies

To address nutrient deficiencies, growers can adjust the plant’s feeding schedule and add appropriate nutrients. For instance, nitrogen deficiencies can be addressed by adding nitrogen-rich fertilizers, while phosphorus and potassium deficiencies can be addressed by adding appropriate supplements.

Pest Infestations

To address pest infestations, growers can use pesticides, insecticides, or other pest control measures. It is essential to identify the specific pest causing the problem to select the appropriate solution.

Environmental Stressors

To address environmental stressors, growers can adjust the plant’s growing conditions. For example, they can adjust the temperature, humidity, or lighting to ensure optimal conditions for the plant.

Marijuana leaf symptoms can indicate various problems that can affect the plant’s growth and yield. Identifying these symptoms and addressing the underlying cause can help growers prevent severe damage and ensure a healthy crop. Whether it is nutrient deficiencies, pest infestations, or environmental stressors, prompt action can make a significant difference in the plant’s overall health and yield.

Can marijuana leaf symptoms indicate multiple problems?

Yes, marijuana leaf symptoms can indicate multiple problems simultaneously. It is essential to identify the specific symptoms to address the underlying issues appropriately.

How often should growers check for marijuana leaf symptoms?

Growers should check for marijuana leaf symptoms regularly, at least once a week, to identify problems early and address them promptly.

Can marijuana leaf symptoms indicate a lack of water?

Yes, marijuana leaf symptoms can indicate a lack of water, which can cause the leaves to wilt or droop. Watering the plant appropriately can address this issue.

Are all marijuana strains susceptible to the same leaf symptoms?

No, different marijuana strains may display different leaf symptoms depending on their genetics and growing conditions.

Are there any natural remedies for leaf symptoms?

Yes, there are many natural remedies for leaf symptoms, such as using compost tea, neem oil, and seaweed extract. However, it is essential to research these remedies and use them correctly to avoid damaging your plants.