4 Reasons Why Your Weed Leaves Are Turning Yellow: Causes and Solutions

As stated earlier, healthy cannabis plants require some care and anyone who would wish to produce such plants should be conversant with the needs of the plants. Even for the most experienced growers, there is always something that does not work as intended: the most common issue many growers face is the fact that the weed leaves turning yellow. This can be rather worrisome especially if you are not very sure what might have caused this. 

Well, in this blog, we are going to discuss the four possible causes of weed leaves turning yellow and measures that can be taken to prevent it.

1. Overwatering or Underwatering

Why Are Your Weed Leaves Turning Yellow?

You will find the weed leaves turning yellow if you are one of those gardeners who over-water the plants. One important thing that you ought to do is to avoid giving your cannabis plants too much water to drink because if this is done the roots of the plant become waterlogged and they do not get oxygen. On the other hand, under-watering also results to chlorosis or yellowing of the leaves since the plant loses its capability to transport water to the growth activities.

Solution:

• Overwatering: Make sure that the plants are watered moderately and be patient when waiting for the next watering season to arrive. Therefore when carrying out the operation remember always to check on the drainage of the pots to avoid the formation of water at the base of the pots.

• Underwatering: Concerning the watering it is recommended to water more sometimes but not to overdo it. The water should be absorbed by the soil and the latter should not be so saturated with water.

Also read:- 6 Signs Your Cannabis Plants Are Overwatered

2. Nutrient Deficiencies

What Deficiency Causes Yellowing of Leaves?

It was earlier said that healthy cannabis plants need some attention and anyone who would love to grow such plants should be aware of the needs of the plants. Even for the most experienced growers, there is always something that does not work as intended: the main problem that a lot of growers encounter is the fact that the weed leaves are developing a yellow coloration. This may be rather worrying especially if you are not very certain as to what may have precipitated this. Well, in this blog, we are going to describe four potential reasons for developing yellow leaves in weeds and what can be done to stop it.

Solution:

• Nitrogen Deficiency: The primary element that becomes deficient most often and results in yellowing of the leaves is nitrogen. To correct this use a nitrogen-rich fertilizer.

• Magnesium Deficiency: They include magnesium deficiency which is common and is characterized by chlorosis between the main veins of the leaves. This can be fixed by a magnesium supplement.

3. Light Burn or Insufficient Light

Why Is My Weed Dark Yellow?

Light is very important to any plant, particularly to cannabis plants but when this is absent, there can be issues. Light burn is when plants are placed too close to the light especially high-intensity light, it is a common problem that leads to yellowing or even browning of weed leaves. Alternatively, the plant receives an inadequate amount of light which hampers the synthesis of energy that is required for the coloration of the foliage and thus the plant turns yellow. for more read about 

How Much Light Does Marijuana Need to Grow Indoors: A Complete Guide

Solution:

• Light Burn: Adjust your grow lights to an appropriate distance from the plants. Typically, LED lights should be 18-24 inches away from the canopy.

• Insufficient Light: Ensure that your plants receive adequate light by positioning them in a well-lit area or using grow lights with the proper spectrum.

Also read :- 

4. pH Imbalance

Is It Normal for Fan Leaves to Yellow During Flowering?

You might also experience a lack of nutrient uptake in your cannabis plants even when nutrients are available in the form of a solution in your soil or water; this is a result of a change in the pH level. This oftentimes results in the weed leaves turning yellow. Further, when the fan leaves are yellowing this will be slightly normal especially when it is during the flowering session, but when the yellowing is extreme then this may be as a result of pH.

Solution:

• Check the pH level of soil or water with which plants are in contact quite often. The cannabis plants prefer growing areas with a pH level between 6. 0-7. 0.

• You can adjust the pH of the nutrient solution with pH up or pH down the solution to meet the nutrient solution’s pH value.

There are a number of conditions that indicate that the leaves of your cannabis plant are yellowing, including watering, nutrient, and light issues. If you know the usual reasons for weed leaves turning yellow and use the tips that we described, it will be easy for you to save your plants.

If you're facing issues with weed leaves turning yellow, don't hesitate to take action. Visit Higher Quality Seed Corp to explore our range of cannabis seeds and growing products that can help you achieve the healthiest plants possible. Our expert advice and top-quality products will guide you every step of the way to ensure a successful harvest.

FAQs

Is it normal for weed leaves to turn yellow?

Yes, it can be normal because its older leaves start yellowing or browning up as the plant grows and starts flowering. However, if there are signs of yellowing of the foliage it is often as a result of stress or lack of nutrients.

What does an overwatered weed plant look like?

The other common indicator is when the plant has been overwatered, the leaves of the weed plant will appear to be drooping and they also turn yellow. The soil may be wet such that the roots of the plant may start to decay if the problem continues.

What deficiency causes yellowing of leaves?

The primary reason for the yellowing of the leaves in the cannabis plant is nitrogen deficiency while magnesium and other micronutrient deficiencies also lead to the same impact.

Is it normal for fan leaves to yellow during flowering?

Yes, it is a natural process for such fan leaves to become yellow especially when the plant is fully focused on the growth of buds. However, if they turn yellow at an earlier stage or the whole plant is affected, then there must be something wrong.

Can a yellow leaf turn green again?

However, once a particular leaf in a plant has become yellow it will not go green again. The best thing to do when facing this problem is to solve the root cause to avoid incidences of further yellowing.

How do you fix yellow leaves on plants?

If your leaves have turned yellow, find out what has gone wrong – too much water or lack of it, inadequate nutrients, light, or pH – and do what is outlined in this article to remedy the situation.

Why is my weed dark yellow?

Dark yellow leaves can be a result of severe nutrient deficiencies or imbalances, abnormal pH, or light burns. It is for this reason that appropriate and immediate action changes should be initiated to rectify the issue.

Should I cut fan leaves during flowering?

It is usually advised that under flowering the yellow or damaged leaves should be pruned to ensure adequate penetration of light to the lowermost parts of the plant and also as a way of enhancing air circulation.