Fridge Grow System für Growbox und Growzelt

Closed Growing Systems: Where plants and technology meet

But do you know what a closed grow system really is? Here you can find out in detail how an automatic grow box from Fridge Grow works and its advantages.

If you are interested in growing plants, you may have heard of closed grow systems. These systems are ideal for those who want to grow their plants in a controlled environment without having to worry about external influences such as light, temperature and humidity.

It is a system where you control all the environmental conditions that are important for growing plants. This means that you grow your plants in an enclosed space where everything from light to humidity is perfectly matched to the needs of your plants.

An example of a closed system for private users is Fridge Grow. Here, any refrigerator is your housing and the cooling is used to regulate the humidity and for watering. But don’t worry, your plants won’t get cold, because the fridge doesn’t run continuously, but only when it gets too humid or too warm. When the fridge is switched on, the back becomes cold and the moisture in the system condenses. On the one hand, this makes it drier, which means that the humidity can be controlled, and on the other hand, the condensed water runs back to the plant and waters it, which means that every drop of water is used and watering only has to be done every few weeks. The heat input is provided by the LED and a heater. The LED is automatically dimmed based on the measured values so that only the necessary heat enters the system and energy can be saved. The CO2 for the plant comes from an external supply using classic CO2 bubbler bottles such as SodaStream. This means that more CO2 can be absorbed by the plant than in conventional systems, which again makes a positive contribution to plant growth.

But why choose a closed grow system? Here are a few reasons:

  • Control: With a closed system, you have control over all the environmental conditions that are important for your plants. This means that you can ensure that your plants get what they need to thrive.
  • Simplicity: A closed system is easy to operate and maintain. You don’t have to worry about outside influences like rain or pests, because everything is controlled by you.
  • Space saving: A closed system takes up less space than a traditional garden, making it a great option for those who don’t have a lot of space.

But how does a closed grow system actually work? Here is a brief overview:


An important component of a closed system is lighting. You need to make sure that your plants get enough light to thrive.

Climate control

You also need to make sure that the temperature and humidity in the system are controlled to create the best conditions for your plants.


An automatic watering system can ensure that your plants get enough water without you having to take care of them.


A closed system also allows you to precisely control CO2 fertilisation.

Overall, closed grow systems are a great option for anyone who wants to grow their plants in a controlled environment. Although technically it takes a little more effort to set up the systems, it’s definitely worth the effort when you consider how much control you have over how your plants are grown.

And now, the most important thing: the fun! Yes, you read that right. You can also have fun growing plants in closed systems. You can let your creativity run wild by trying out different types of plants and growing setups. Or you can just sit back and watch your plants grow and thrive.

So, why not try a closed grow system and find out for yourself how much fun it can be to grow your own plants?

Environmentally friendly

A closed grow system is also a more environmentally friendly alternative to traditional outdoor growing. Because the system is closed, the water stays in the environment and there is no waste. You can also optimise energy consumption by using LED lights or solar energy.


Plants grown in closed systems are usually free of pesticides and other chemical additives, as you can control growth precisely. This is especially important for people who care about their health and the environment.

Cost efficiency

Although it can be more expensive to set up a closed grow system in the beginning, you can save a lot of money in the long run as you no longer need to buy expensive pesticides and fertilisers. Also, you can grow fresh vegetables and herbs all year round, which reduces the cost of food.

In summary, enclosed grow systems are a great way to grow your own plants. They offer control over growth, are environmentally friendly, safe and cost effective. So why not set up a system and find out for yourself how easy and fun it can be to grow your own plants?