best greenhouse humidifier
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As you may or may not know, humidity and the ability to control it in your greenhouse can make or break your success.  Because of this, equipping yourself with the best greenhouse humidifier is very smart.

My Best Greenhouse Humidifier Recommendation


DropAir Humidifier


Why this one?  It’s a great choice!

  • Helps lower your greenhouse temperature.
  • Control humidity easily.
  • Controls the water automatically.
  • Covers a lot of space.

How To Control The Humidity In Your Greenhouse

Greenhouses are pretty useful for ardent gardeners who love gardening. Made of large glasses or acrylic panels, these structures are a great way to grow and cherish organic plants.

By enabling special light, humidity and temperature control, you can grow fruits, flowers and vegetables throughout the year.

However, how to control the humidity in your greenhouse is one of the biggest challenges that come along in the way. If not regulated properly, humidity and temperature make a less conducive space for your plant life. In case you lack info about controlling humidity for your greenhouse gardening venture, then read the below guidelines.

Find out ideal humidity

For most of the plants, the desired humidity lies in the range of 50 to 60 percent. It is important to maintain this level of humidity in order to ensure that the plants survive and thrive as you like.

However, managing desired humidity level is certainly not easy, but knowing the level will keep you informed about taking steps at the right time to sustain proper humidity.

Failure to do so can hamper the growth of plants. For instance, high humidity encourages fungus and mold growth, whereas low humidity leads to dehydration among plants.

Apply adequate water

Water is the life blood of any plant. You need to ensure you provide the right quantity of water to your greenhouse.

Do not apply too much water to your plants. Excessive water creates puddles, which in turn increase the level of humidity once the water evaporates.

Instead of directly applying water onto the flowers, fruits and leaves to reduce on evaporation, apply water to the soil. Water the plants in the early morning hours. It gives the soil enough time for the water to dry before the temperature falls during the night.

Install anti drip lining

Condensation is normal in certain greenhouse designs, but unchecked dripping leads to a higher level of humidity.

You ought to check the level and bring it down to desired humidity to avoid condensation. You can do this by inspecting the structure for water drips. To avoid water dripping, attach anti-drip lining to the problem areas. Y

ou should also take out the plants from the drip line and move them to an alternative location within the structure.

Vent your greenhouse

To promote effective exchange of air, vent the structure. Good air circulation is the main point in controlling humidity.

Hot and humid air exits the greenhouse allowing dryer, cooler air to get in. If the humidity gets closer to 100 percent or the temperature moves over 80 degrees F, there should be about 50 exchanges of air per hour to bring down humidity. To do this, a side vent near the floor and a roof vent are the best option.

Aside from this, install air flow fans (horizontal) in the greenhouse. These fans improve the circulation of air while expelling humid air out.

Just turn on the fans to force the humid air to move out through the vents. You may also want to consider installing vents around the structure. In spite of this, you will face big challenges during winter months where you will be required to control both heat as well as humidity.

The vents and fans cause the temperature to fall. This could lead to condensation because the plants get colder than the air around them. For a proper balance, you ought to increase the temperature.

Get a combination of humidity and thermometer gage from a garden supply outlet. The device will help you to monitor and control humidity more effectively. Also, you have to install a heating element during winter months. You can obtain this from the greenhouse supplier. The heating element is installed at the bottom of the structure and aids in heating the air within.

Mist your greenhouse

Mist the greenhouse to increase humidity when it starts to warm up and vent the hot air outside. Although installing a misting system is one good option, there are certain precautions you need to be aware of if you do.

You should mist only during daytime because the humidity will rise during nighttime with the fall in temperature. One option would be to install a timer to set off the misting system a couple of hours before the sunset.

Additionally, be sure to place the nozzles of the misting system under the shelves of the plants to avoid soaking of plants.

Clear weeds

Weeds are a real threat to any greenhouse!

You should inspect the structure and look for weeds before they pose any problem to plant life. Make it a habit to inspect the greenhouse for weeds.

Once you spot them, clear them as fast as possible. When the plants soak water some ends on the surface of leaves where it evaporates, and this increases humidity levels.

Weed clearance helps in cutting down the levels of humidity. So be sure you note this point and act accordingly.

Install a shade

Just like winter months, summer months pose another type of threat to your greenhouse plants. To keep the structure from overheating, shade the greenhouse during the summer.

Hot air gets out through the vents when the greenhouse structure heats up in summer. Such a situation causes the plants to wilt as they tend to lose valuable moisture.

Shade clothes are available at garden supply stores. You can drape these shades over the top of the structure to bring down the temperature within the greenhouse and maintain necessary humidity.

Closing words

Growing plants in a greenhouse is a great way to cherish nutrients-rich, organic foods.

However, maintaining sustainable temperature and humidity is a big challenge for greenhouse gardening. It is likely that you may end up with poor quality farming due to unfavorable humidity.

The good news is you can manage humidity by getting educated. If you don’t know how to control the humidity in your greenhouse, stick to the above guidelines.

With the right tools and efforts, you are on your way to controlling humidity for a better plant life in the greenhouse structure all through the year.

About Admin

With over twenty years of experience in commercial hydroponic crop production, I have just about grown everything. I am actively involved in urban gardening initiatives, community agriculture education and am a guest speaker for many agricultural conferences and seminars.

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