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How many Autoflowers Per Tent Should I grow?

cannabis plants in a grow room

Autoflowers sure are an excellent option for cannabis growers looking for faster harvests. The plants are capable of producing healthy crops within two-three months. And better, they don’t need to depend on light cycles for it. After a certain interval, the plants are modified to flower, offering them leverage over the photoperiod cannabis plants. They also make a great choice for indoor growers with smaller grow tents.

The only question is, how many autoflowers per tent can you grow? This blog will present you with the answer to this particular question and the factors you need to consider. Read on for more details.

How many Autoflowers Per Tent Works Best?

The number of Autoflower in a tent is highly dependent on the tent size. So, the first part of finding the correct number of autoflowers per tent is to find the area of your grow tent.

cannabis plants in a grow tent
Picture by TheUK420Show (https://growdiaries.com/diaries/135618-grow-journal-by-theuk420show/week/752875)

Now there are a lot of different sizes of cannabis growing tents that you can get in the market. Some of the most common sizes include the following.

10*10 Square Feet Grow Tent

The 10*10 square feet tents are amongst the largest of the commonly available cannabis-growing tents in the market. The 10*10 tents are preferred by growers who have decent growing space and need a tent for an extra layer of protection or control. You can grow around 12-18 autoflowers in a 10*10 tent.

5*5 Square Feet Grow Tent

The 5*5 tent is one of the most popular cannabis tent sizes, mainly because it is neither too large nor too small. The tent offers you an area of around 25 square feet which is enough for 4 to 10 autoflowers per tent.

4*8 Square Feet Grow Tent

The 4*8 feet tents are slightly uncommon, but they make a great alternative for the standard 5*5 tents. They have a somewhat rectangular shape and can offer you an area of around 32 square feet which is enough for nearly 10 plants.

4*4 Square Feet Grow Tent

If you are looking for a compact-sized tent, the 4*4 tents are the best choices. These tents need limited lighting and are especially good for beginner growers with a limited budget. It offers them 16 square feet of area, enough for 4-6 plants.

3*3 Square Feet Grow Tent

These are small type cannabis tents with a total growing area of 9 square feet. You can use it to grow a minimum of 2 and a maximum of 4 plants. If you are highly limited on space and have to grow a minimal quantity of autoflower, the 3*3 feet tents are a preferable choice. 

2*4 Square Feet Grow Tent

The closet size 24 size cannabis tents are relatively small and not that ideal for harvesting cannabis. Although, if you choose the right strain, you can fit 2-4 autoflowers in a 24 tent. The tent is usually preferred for growing seedlings that you can later transfer to a more extensive growing area. The tent also makes a decent growing area for a mother plant.

General Calculate of Autoflowers Per Tent

The tent sizes you just read about are the most commonly available ones. However, the cannabis tents are not limited to these sizes. You might find them in several more dimensions and have a custom size option. The number of plants per tent will change, and you might have to calculate manually. 

For this part, the most crucial factor is setting boundaries and calculating your tent’s overall area. Just light up the tent and mark the area that does not receive any light. Then measure the remaining space using a measuring tape. 

To get a more precise idea, let’s say you have a tent of size 2*2 feet, and around 5 inches of the border area does not receive enough light. Then the overall dimension of the tent will be 2 feet minus 5 inches. Therefore you will be left with approximately 1.6*1.6 feet of the growth area. 

The next part of the process is, of course, deciding the number of plants. This part will highly depend on your growth methods, plant type, container sizes, and more. Usually, you can grow one plant per square foot using the Sea of Green (SOG) technique and around one plant every 4-6 feet using a Screen of Green (ScrOG). 

We have a whole other blog for calculating the number of autoflowers per square foot that you can use to obtain detailed information on this topic. A few others in the blog section will discuss the different aspects of this calculation in detail. 

Factors Affecting Autoflowers Per Tent

The tent dimension and its area, as apparent, are directly related to the number of plants you can grow. However, that is just one factor; many other things can affect the number of autoflowers per tent. Some of the significant factors you will need to consider while calculating the number of plants include the following. 

Size And Development of Your Strain

The shape, size, and growth of every cannabis plant highly depend on its genetics. There are strains of plants that grow tall, and then there are plants that will remain short and bushy. You can also find an autoflower that balances these aspects for maximum yield in minimum area.

Therefore, it’s essential to pay attention to the datasheet of the seeds you are purchasing. If you need more plants in less area, it’s best to go for a slightly tall type plant. They need much less space to expand, which decreases the interplant space in your tent. With proper trimming and pruning, you can limit their leaves to best suit the space.

On the other hand, the bushy type plant strays close to the soil and needs high space to expand. They will attain a better yield quantity but will need more space.

And in case you are opting for a tall plant, make sure its maximum attainable size is less than your tent’s height. If the plant is too long, it will touch the tent’s roof and may also block light from dispersing correctly. 

Growth Techniques

Cannabis growers use several different growing and training techniques for their autoflowers. Usually, the ones looking for quick yield will adopt methods that can increase the number of plants per square foot, while ones focusing on quality use methods will reduce the number of plants.

An example of ScrOG application
Image by DoDrugs420 (https://growdiaries.com/diaries/112925-grow-journal-by-dodrugs420)

In general, you will find around three popular methods nowadays – Sea of Green, Screen of Green, and Low-Stress Training. 

The first technique for the sea of green involves planting many bushy plants to increase crop quantity. In contrast, in Screen of Green, you use nets or wire mesh to mold a single plant for maximum growth and yield. You can have more than one plant, but the number will remain low. 

The Low-Stress Training is similar to the Screen of Green, except you don’t have mesh or nets here. Growers use clamps or threads to mold the plant for maximum branching to increase plant growth and light exposure. 

Now, which of these techniques you plant to use for your crop will directly affect the number of autoflower per tent. The interplant space for the first technique is low, while the other two need a decent space. 

Pot or Container size

The cannabis tents are not like your standard cannabis-growing field. There’s no soil, so you cannot place your plant directly on the tent floor. Thus, you have to put containers with plants into the tent. 

And the pot you use will play a significant role in the number of autoflowers in a tent. If you use large pots, they will need more space, decreasing the number of plants. At the same time, if you use too small pots, the plant number will increase, but their quality will decrease. Moreover, if the pots are too small, the plant may not grow to its full size or even die.

Usually, a pot of 12-15 liters suits best for the cannabis-growing tents. Although, you can increase or decrease the size depending on the strain and growing method. The age of your plant can also influence the pot size. You can start the plant with small pots, something like a 3 liters pot, and then increase its size as the plant grows.

Light Source

Lights are the most crucial part of any cannabis tent and will influence your final product’s quality and quantity. Even a slight miscalculation in lighting can degrade your crop and prevent your plant from growing. It also links directly to the number of autoflower per tent that you can plant. 

This part is slightly more tricky than most, and you need to calculate the precise amount of light required. Provide less than the light needed, and you might damage your crop while providing more light than needed will increase electricity bills.

LED light for growing cannabis
Image by TheUK420Show (https://growdiaries.com/diaries/135618-grow-journal-by-theuk420show/week/731650)

Not to mention there are many different light options for cannabis tents. You can go for CFL, LED, fluorescent, and many more. Each of these lights has different electricity requirements and lumination value. Plus, they need different types of fitting and sometimes cooling systems that you need to consider.

Effect of Different Lights on Number of Autoflowers Per Tent

Each light source of your cannabis tent will produce a different quantity of cannabis at different watts. Let’s have a look at each of them one by one. 

Fluorescent

Fluorescent is one of the most preferred light sources for cannabis farming so let’s start with its effect on the yield. This light source type has a few variants, namely the CFL and T5, both pretty efficient. However, the light source is not ideal for autoflowers in a 4*4 tent. The light source can produce only 0.25 grams or 0.0005 LBS of buds per watt of power, which is low. 

You will be wasting a lot of electricity while producing very low results. The power bill may eat up all your profits.

HID

The HID lights are highly efficient and can produce a relatively high light intensity. They are often the best choice for large cannabis farms due to their light. These lights also have an excellent yield rate compared to other light sources. 

HID can produce around 1 gram per watt. It means a 1000 watts HID lamp will produce approximately 1 kg or 2.2 LBS of cannabis buds. The inner reflection of the 4*4 tents will further enhance the results. 

The only drawback of this light is the heat it produces. The light needs proper temperature management and a cooling system to work. It’s also ideal for turning off these lights for a couple of hours per day to prevent overheating. All the three variants of the HID light (Metal Halide, High-Pressure Sodium, and Ceramic Metal Halide) have this common problem. 

LED

The Light Emitting Diodes or LEDs are much more efficient than the fluorescent lamps. They don’t have the same intensity as the HID, but their low heat compensates for them. Besides, they still present a pretty good yield rate. LED can present you with 0.5 grams per wattage of light. It is half of what the HID offers, but again so is the investment in installing and managing them. 

The lights are cheaper than HID and don’t need any cooling system. They can also work continuously for prolonged periods without any problem. Moreover, you always have the option of increasing their quantity to get better results. 

The cannabis growers have different requirements, and a standard tent cannot fulfill that requirement. So, the cannabis tent comes in multiple different sizes, allowing you to grow a different number of autoflowers per tent. 

Conclusion

Growing cannabis in a tent is an excellent way to attain control and ensure the better health of your plant. You can use these tents to grow the overall crop or grow saplings for your field. Either way, you will need to calculate the number of autoflowers per tent carefully. And the data provided above can help with that. So please read it carefully, understand it and implement it while growing your cannabis plants. 

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How many Autoflowers Per Tent Should I grow?

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