When humidity levels are low, a few things are bound to happen to plants. The lower leaves drop off, growth becomes hard, and plants may be unable to grow larger in size. If there is really low humidity in your grow tent, it means the atmosphere is really dry. Dry atmospheres pull up water from leaves, and if it’s extremely dry, this places a strain on the leaves of the plants.
To ensure the plants in our grow tents don’t die off because of low humidity, we have to manually increase the humidity levels. What do you do if you want to lower the humidity level?
How To Lower Humidity In A Grow Tent
Just like almost everything, extreme levels of humidity are not good for plants. Certain occurrences are responsible for the fluctuation of humidity levels, both in and out of grow tents. Different plants require varying humidity levels – seedlings, flowering plants, and so at different times, the need to increase or reduce humidity levels will arise.
Below, we highlighted a few tips on how to control humidity in a grow tent.
1. Do not flood your plants
At times, you may overwater your plants, probably because you feel the plants don’t get enough water. However, over-watering your plants will reduce their efficiency in carrying out transpiration depending on the temperature in the tent. When the atmosphere is saturated with water vapor, the rate of transpiration is slowed down to an extent that may not be healthy for the plants.
2. You could try defoliation
This is simply the removal of leaves. Naturally, larger leaves release more moisture than smaller leaves, and so if you find in your grow tent one too many large leaves, you can try cutting off a few just so you could, to a little extent, reduce the amount of moisture the leaves give off.
Letting air into your grow tent. Allowing a bit of air to blow away the moisture in the atmosphere reduces high humidity. It also aids your plants’ ability to give off moisture. You could create holes in your tent. Holes that are large enough to let air in. Remember to not overdo it as excessive aeration would lead to exceedingly low humidity which would cause the plants to drag up water from the soil. Take note of the fact that frequently opening your grow tent can cause odors to escape into the room. In addition to that, it may expose the plants to attacks from rodents especially if you have your grow tent in a storeroom.
4. Make use of a dehumidifier
A dehumidifier lives up to its name as it removes humidity in grow tents. Grow tents have specially designed dehumidifiers. This is one way by which one can reduce humidity without actually having to do so much. The machine does it all. You’d just have to empty it when the water tank is filled up. These are just a few ways by which you could reduce humidity levels in your tent. You do not necessarily have to use every one of the ideas mentioned above, as that will be too excessive and would really cause extremely low degrees of humidity, and as stated earlier, extreme levels of either low or high humidity are dangerous to the development of your plant.
Situations that call for increasing humidity levels will definitely arise. Do well to humidify the air around your plants where necessary.
Here’s how to control temperature and humidity in grow tent.
1. Invest in a humidifier
A bucket containing water is connected to the humidifier using a hose. The water is then fed into the humidifier which fills the room with moisture, thereby increasing humidity. Some humidifiers enable the user to be able t regulate them. This alone could just be enough to raise the humidity, but what happens if you can’t afford one at the moment?
2. Reduce the dehumidifier’s settings
If you have a fan that extracts moisture, you could configure it to reduce its rate of extraction. This, in turn, leaves more moisture in the atmosphere of your grow room so your plants have more moisture for their growth.
3. Bring in larger plants
Plants with large leaves transport moisture more than plants with small leaves. The strain on them by the dry condition is lesser than what smaller plants would experience and would ease that on smaller leaves. You could just add a few plants with larger leaf size. Better still, you can group plants together in a cluster. This enables the plants to transpire together, thus they end up forming a mini humidifier themselves. Be careful when grouping them together, so that you don’t end up spreading diseases from an infected plant to the non-infected plants.
4. Reduce grow lamps
If necessary, reduce the number of grow lamps in your tent. These lamps generate heat, heat makes the atmosphere drier and lowers humidity. The more they are, the higher the amount of heat and vice versa.
5. Control Airflow Into Your Tent
Introducing air in the tent will blow away the moisture. By reducing airflow in your tent, you can limit the loss of air humid air from the tent. Blocking some sources of airflow in the tent will help to retain moisture in the atmosphere.
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