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If your cannabis leaves are turning yellow, it could be due to a number of different factors. In this blog post, we’ll explore some of the most common causes of yellowing leaves and what you can do to fix the problem.
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The Problem
Your cannabis leaves are turning yellow because of a nutrient deficiency. Most likely, you are not giving your plants enough nitrogen. Nitrogen is an essential nutrient for plants and is responsible for the green color in leaves. When plants don’t get enough nitrogen, the leaves will start to turn yellow.
Not enough light
If your cannabis leaves are turning yellow, the most likely culprit is a lack of light. Cannabis plants are native to the equatorial regions of the world, where they receive 12+ hours of direct sunlight each day. In order to stay healthy, cannabis plants need a minimum of 6 hours of direct sunlight (or very bright indirect light) each day. If your plants are not receiving enough light, their leaves will begin to turn yellow as the plant “stretches” in an attempt to reach towards any available light source.
Other possible causes of yellow leaves include nutrient deficiencies (particularly nitrogen and magnesium), over-watering, or high temperatures. However, these problems are less common than a lack of light.
Too much light
If you notice that your cannabis leaves are turning yellow, it could be because they’re getting too much light. While cannabis plants need light to grow, too much light can cause the leaves to turn yellow. If you think your plant is getting too much light, try moving it to a spot that gets less light.
Not enough water
One of the most common reasons for yellow leaves is simply that your plant is not getting enough water. If the leaves are wilting, this is a pretty good indicator that the plant needs more water. Check the soil before watering to make sure that it is actually dry and not just cooler than the surrounding air. Damp soil will stick together when you squeeze it, but dry soil will fall apart. Water thoroughly until water runs out of the bottom of the pot, then empty any excess water from the saucer.
Too much water
If you notice your cannabis leaves turning yellow, it could be a sign that you are watering your plant too much. When plants are overwatered, the roots begin to suffocate and rot. This prevents the plant from taking up nutrients properly, causing the leaves to turn yellow and eventually die. If you think your plant is being overwatered, check the soil to see if it is soggy or moist. If it is, try letting the soil dry out before watering again.
Nutrient Deficiencies
One of the most common problems that cannabis growers face is nutrient deficiencies. Nutrient deficiencies can cause a wide range of problems, including leaves that turn yellow.
There are a few different ways to tell if your plant is suffering from a nutrient deficiency. The first is to look at the overall health of the plant. If it’s healthy, then it’s likely that the problem is not a nutrient deficiency.
The second way to tell if your plant has a nutrient deficiency is to look at the leaves. If they are yellow, then it’s likely that the plant is deficient in one or more nutrients.
The third way to tell if your plant has a nutrient deficiency is to look at the roots. If they are white or brown, then it’s likely that the plant is deficient in one or more nutrients.
If you think that your plant has a nutrient deficiency, then you should take steps to correct the problem as soon as possible. The longer you wait, the worse the problem will become and the more difficult it will be to fix.
There are a few different ways to fix nutrient deficiencies. The first is to simply give your plants more of the nutrients they need. This can be done by using fertilizers or by adding organic matter to the soil.
The second way to fix nutrient deficiencies is to change the way you water your plants. This can be done by watering them less frequently or by using different types of water (such as rainwater or distilled water).
The third way to fix nutrient deficiencies is to change the location of your plants. This can be done by moving them to a new location or by changing their exposure to light (such as moving them indoors).
Once you have corrected the problem, you should see a noticeable improvement in your plants within a few days or weeks.
The Solution
If your cannabis leaves are turning yellow, it could be a number of things. It could be a nutrient deficiency, it could be that the pH of your water is off, or it could be that your plant is getting too much light. Let’s take a closer look at each of these potential causes.
Check the light situation
If your leaves are turning yellow, one of the first things you should check is the light situation. Not getting enough light is a common reason for yellowing leaves. If your plant is not getting enough light, it will start to stretch out, and the leaves will turn yellow and start to die back from the bottom up. The best way to fix this is to move your plant to a brighter spot.
If you think your plant is getting too much light, that can also cause yellowing leaves. Your plant may be getting sunburned, which will cause the leaves to turn yellow and eventually brown and die. If you think this might be the problem, move your plant to a shadier spot.
Check the watering situation
If your plants are wilting, it’s likely that they’re not getting enough water. Check the soil to see if it’s dry a few inches down. If it is, water your plant deeply and wait a few days to see if the leaves return to their normal color. If the leaves are still yellow after you’ve watered, you may be over-watering your plant. Check the drainage of your pot and make sure that water isn’t pooling at the bottom. If it is, try watering your plant less often or moving it to a pot with better drainage.
Check for nutrient deficiencies
If your leaves are turning yellow, it’s time to check for nutrient deficiencies. Keep in mind that different cannabis strains have different nutrient requirements, so you may need to adjust your feeding schedule depending on the strain you’re growing.
Common nutrient deficiencies include:
-Nitrogen: Yellow leaves with brown or dead spots. This is the most common deficiency.
-Phosphorus: Purple or red leaves. Phosphorus deficiencies are rare but can be caused by over- watering or using too much nitrogen.
-Potassium: Brown or yellow spots on leaves, along with wilting and curling. This deficiency is most common in hot, dry weather.
If you think your plant has a nutrient deficiency, flush the soil with clean water and then start feeding your plant a basic cannabis fertilizer according to the manufacturer’s instructions. If you still can’t fix the problem, consider talking to a local grower or sending a sample of your leaves to a lab for testing.
