What Temperature is Too Hot for a Greenhouse

If you’re wondering what temperature is too hot for a greenhouse, here’s what you need to know:

Your greenhouse is too hot if the temperature goes beyond 90 degrees F. Even the most heat-resistant plants and vegetables won’t survive this temperature. The ideal climate for plants to grow and thrive should be around 80 to 85 degrees F.

What Temperature is Too Hot for a Greenhouse


How Can You Lower the Temperature of a Greenhouse

If your greenhouse is too hot, here are some of the ways to lower the temperature:


Open the doors and windows

Let your greenhouse breathe. Open the doors and windows or roll up the plastic sheet to release to ventilate and provide air circulation.


Use fans

Using fans to cool down your greenhouse is better than opening doors and windows. Fans keep the hot air out and draw the fresh air in. For this method to be effective, make sure not to place the fans on the ceiling or ground level. You should place the fans around six feet high in front of vents to draw air over and through your plants.


Use shade

Another way to lower the temperature inside your greenhouse is to use shade. This blocks the blazing heat from the sun from entering your greenhouse. You can use a shade cloth, plant vines, or a liquid shading compound.


What Grows Well in a Hot Greenhouse?

Temperatures go up during summer, so it’s better to grow plants that thrive best in warm weather. Just make sure they get plenty of water so they’ll continue producing throughout the summer. Here are the following plants you should consider growing:



Greens grow well in warm weather. But if you want to hasten growth and harvest, it’s best to plant them in a greenhouse.



To grow sweet melons, you’ll need two to three months of warm, summer weather. Keep your plants moist, but make sure not to overwater, especially when the melons are starting to ripen. Adding too much water makes melons bland. Heirloom melons are deeply rooted in the soil, so they thrive best in heat and drought.



The hotter it gets, the faster the corn grows. However, you need to ensure that the soil is moist enough throughout the growing season. Corn absorbs a lot of water to form crunchy and sweet kernels.


Sweet Potatoes

While sweet potatoes are famous in the southern United States, northerners are beginning to catch up. Sweet potatoes thrive best in the heat, but just like other plants, they need to have even moisture. Don’t forget to harvest your sweet potatoes before the soil temperature goes below 55 degrees F.



Compared to sweet bell peppers, hot peppers work better under prolonged heat. If you prefer sweet peppers, you can try planting Big Bertha, Cal Wonder, Cubanelle, and Sweet Banana.


Top Reasons Why You Should Invest in a Greenhouse

Greenhouses allow you to control the climate. You can ventilate during hot days, protect your plants from heavy rains and strong winds, and provide shade under the blazing sun. At the same time, you can also maintain the humidity levels to ensure that your plants grow healthy.

Here are some of the reasons why you should invest in a greenhouse:


Prevent pests

Harmful pests and critters can destroy all your hard work. By placing your plants in an enclosed space, you can prevent birds, deer, moles, aphids, mites, etc. from attacking your plants. Consequently, you wouldn’t need to use toxic pesticides or chemicals to ward off these critters.


A longer growing season

Greenhouses offer a longer growing season since it provides a more controlled climate. This enables you to plant weeks or months longer.


Protect plants from extreme weather

Placing your plants in a greenhouse protects them from harsh weather, such as heavy rain, strong winds, hail, storm, and blazing heat. As we’ve already established, greenhouses can shield the plants from the effects of temperature swings.

Strong winds and beaming rays of the sun can negatively affect the delicate plants if left exposed. Glass greenhouses or greenhouses with a plastic, translucent cover, diffuse the sunlight that hits your plants while ensuring that there’s enough ventilation throughout the space. Make sure to use a greenhouse to cover your plants and produce from harsh weather.


More plants to choose from

If you want to grow plants that aren’t native to your area, you should consider getting a greenhouse. As mentioned, you can easily control the temperature in a greenhouse so that you can offer a colder or warmer environment regardless of the weather outside.

The heat and insulation let you plant warm-season crops even if it’s the winter season. A greenhouse allows you to adjust the climate based on the plants you want to grow. All you have to do is to understand the conditions your plants need to grow and thrive.


Thoughts on the Answer to “What Temperature is Too Hot for a Greenhouse?”

Now that you know what temperature is too hot for a greenhouse make sure that your greenhouse’s temperature DOES NOT exceed 90 degrees F. Otherwise, your plants may shrivel up and die. Make sure that you know the perfect growing conditions for your plants and adjust your greenhouse accordingly.

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How To Prevent Root Rot In Hydroponics: 3 Useful Tips

If you’re a newbie gardener who’s looking to find ways to hone your skills, you’d want to learn how to prevent root rot in hydroponics even before this problem affects your plants.

Hydroponics can be advantageous to crops in more ways than one. However, it also comes with risks of diseases, such as root rot, which can be destructive or even lethal to your plants.

Unfortunately, there are no effective methods to recover the wilted parts that were affected by the root rot once it hits your plants. The only thing you can do if you do not want this catastrophe to befall your crops is to prevent it before it happens. Read on to learn more about this subject.


What is Root Rot?

Root rot is a disease that attacks the plant roots and causes them to suffer decay. This usually happens when a lack of oxygen supply occurs in the substrate.

To give you an idea, think about plant roots that are submerged in water that only has a little oxygen in it. Over time, the plant suffocates and dies.

Aside from rot and decay, this disease also leads to the proliferation of fungi that are naturally present in the soil. These include Rhizoctonia, Alternaria, Pythium, Botrytis, Fusarium, or Phytophthora. As soon as fungi colonies start to grow, they tend to target the weakened roots and infect your precious plant babies.

Once the plant becomes infected, they won’t be able to take in what they need to grow – water, oxygen, and other nutrients. When this happens, it won’t be long before the plant dies.


What is Hydroponics?

In case you’re not aware, the term hydroponic is derived from a Latin word that means “working water”. To put it simply, hydroponics is an art that involves growing various types of plants without soil. If you’re like most people, the first thing that comes to mind when somebody talks about hydroponics would be a picture of plants with roots suspended into the water without using any type of growing medium.


Avoiding Root Rot in Hydroponic Systems

Detecting and identifying root rot can be tricky. When your plants get infected, their leaves and roots gradually wither until the whole crop itself dies from the lack of nutrients, which is a common symptom of many diseases.


What causes root rot in hydroponics?

One of the requirements in hydroponics systems is oxygen. Without it, your plants are basically on the road to death. On the other hand, lack of such is one of the major triggers for root rot, and it must be avoided at all costs.

Just like when planting in soil, you loosen up the ground so that your plants’ roots can have their required intake of oxygen. That is the case for crops grown in aqueous solutions as well. If they cannot breathe, they would not be able to grow.

Another agent for root rot is the temperature. The last thing you would want in your system are parasites that leech nutrients intended for your plants and infect the water during the process. In common terms, these fungi are called molds.

One of the best breeding grounds for these is warm and moist areas. For this reason, if the water temperature inside your reservoir is high, then you are susceptible to it. Something as minor as letting the solutions exposed to sunlight can already be a risk factor.


3 Useful Tips on How to prevent root rot in hydroponics

There is good news! Root rot in hydroponics can be prevented! Just follow these tips:

Tip#1: Use the right air pump

If you do not want root rot to affect your plants, you merely have to avoid its causes. If you need oxygen, keep the water bubbling by providing an air pump of appropriate size, and also give importance to proper ventilation in the room.


Tip #2: Maintain the temperature

The temperature should be maintained within the 70 to 80 degrees F range. Get rid of any materials that can make your system vulnerable to infections, and make sure not to disturb your crops while they are trying to grow.


Tip #3: Get rid of the rotten parts

However, if you failed in preventing the disease, then the rotten parts should be removed immediately. Cut them off as there is no chance of reviving them, and focus on the potential new growth instead. Fix your hydroponics system and eliminate the risks.


Why Give Greenhouse Gardening a Try?

Greenhouse gardening offers numerous benefits to greens aficionados who dare to take their gardening experience to the next level. Aside from acting as a shield against the effects of inclement weather, a mini, hobby, or semi-pro greenhouse can also serve as a protective layer that keeps harmful bugs and critters at bay.

What’s more, its enclosed structure allows you to control your plants’ growing conditions including the temperature, light, moisture, and ventilation of the greenhouse’s internal environment. With a controlled environment, you’ll be able to extend growing seasons and grow plants that aren’t native to your area.



No matter how well-informed you are about how to prevent root rot in hydroponics, you cannot completely eradicate the risks. Therefore, to avoid the worst-case scenario, you should be prepared to sacrifice the infected for the sake of others. While you’re at it, consider trying your hand at greenhouse gardening as well.


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