marijuana nutrient deficiency

How to Fix Underwatered Weed Plant

First-time marijuana growers usually don’t follow an appropriate schedule to water their weed plants. Because cannabis cultivators get busy, they forget to water their weed plants or are oblivious of appropriate watering practices. Determining how to fix an underwatered weed plants is important and if you are not sure whether your weed requires more or less water, you can figure out exactly why your cannabis plant is drooping with the following information.

Causes of Weed Plant Underwatering

As already mentioned, a major cause of underwatering is not providing enough water to your cannabis plant. They don’t absorb water at once from the growing medium. The roots of the weed plant absorb water from the soil. Water is utilized for different processes which include transpiration. It means that water evaporates from the leaves.

Plants lose water and then the roots absorb it from the growing medium. The cannabis plant cannot have the water required for several vital processes if the growing medium is dry, wherein the plant gets weak and may eventually die. It’s important for your growing medium to hold enough water so that the weed plant absorbs and reabsorbs water, and this is only possible if your weed plant is fed with the right amount of water.

Some cannabis growers may not consider the temperature and weather when watering the cannabis plant. The weed plant requires more water in hot weather. Also, some marijuana growers tend to underwater weed plants to avoid overwatering but get too far ahead. That is why proper watering practices are essential. While chronic underwatering is easy to treat, it’s better to avoid this problem altogether by implementing good watering practices.

Determine If Your Plant Is Underwatered

Before you start any treatment, it’s crucial to be certain of the underwatering problem. A method that will never fail is to examine your weed plant. Examine your weed plant daily won’t only determine the underwatering problem early. It will also prevent many problems altogether. Keep in mind that root rot, overwatering, and underwatering have similar symptoms. For this reason, it’s necessary to figure out other problems. Make sure to check your weed plant for these signs to accurately determine the issue:

Here’s how to check the signs of an underwatered weed plant:

  • Look at the Weed Plant: Take a close look at your weed plant closely. An underwatered cannabis plant is drooping and getting better after they are watered. If your weed plant looks wilted and droopy, there’s a high chance that it’s underwatered. Remember that a dull-looking and lifeless plant can be a number one pointer that your cannabis plant is not being properly watered.
  • Check the Leaves: Before you learn how to fix underwatered weed plants, it’s imperative to check the leaves. You can touch the leaves and feel if they are dry, brittle, thin, and papery. “Papery” and thin leaves occur because they do not have water inside them. As opposed to overwatered cannabis plants where the leaves look fat or bloated due to the water contained inside. If the weed plant is chronically underwatered, it will lead to nutrient deficiencies and yellowing leaves.
  • Check at the Growing Medium: Stick your finger in the growing medium to determine if it’s dry underneath the top layer. There’s a high probability that the roots of your cannabis plants have dried out if it’s dry an inch down. You may observe that the area around the cannabis plant is separated from the other growing medium due to extreme dryness.

Another technique of checking the growing medium is to lift the pot. It is lighter if your weed plants have absorbed the moisture from the soil, which means that it’s waiting for you to water them again. If ever the soil or soilless medium appears bone dry every watering or if the roots have dried out, your marijuana plants are definitely experiencing underwatering.

Steps On How to Fix Underwatered Weed Plant

The important thing is to avoid overwatering your weed plants. You can feed your cannabis plants enough until you see the water runoff at the bottom of the pots. For the amount of time it takes, it should be about 30 to 60 seconds before a slow rate of nutrient solution or water forms at the bottoms.

Here are the Important Things To Remember:

  • Remember to keep the nutrient solution at the same amount as before. Never attempt to increase the electrolyte level to attempt to make up for the lost time.
  • Aim to saturate your growing medium until the water runoff.
  • No matter how much water you use or drains away, the growing medium will have an effect.
  • The temperature of the water when watering your weed plants should be around 15 to 22 degrees Celsius. Avoid using cold water.

General Tips When Managing Underwatering

Check the following tips on how to manage underwatering of your cannabis plants:

  1. Foliage that became crisp and lifeless must be removed from the weed plant. It is because dead leaves attract insects and nuisance guests.
  2. Wait until the plant pots are light enough to be picked up before watering again after you’ve watered the growing medium correctly.
  3. If you’re an outdoor grower who is not able to water your plants on time, invest in a water pump and water drip lines.
  4. An amazing way to revitalize your weed plants is through foliar feeding weed plants. You can also saturate the growing medium to restore the moisture level they can transpire.
  5. Marijuana plants that have grown in small pots will dry out quicker. It’s a smart idea to plant your weed plants into larger pots that can hold more moisture.


If you learn how to fix underwatered weed plants, you’ll be able to prevent this from happening again. Make sure to carry out the tips and steps on restoring your underwatered cannabis plants by following the ones above. Take time to water your plants and once you know the ins and outs, you’ll master proper watering of weed plants.

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