how much cannabis can you grow per square foot

It’s tempting to grow a lot of plants, but you don’t want to spread your light out too thin! If you grow too many plants you might get less than an ounce per plant, and your buds will be airy and light!

It doesn’t matter whether this canopy was created by one plant or many. However you got here, your yields will be about the same as long as everything else is equal!

Many growers find it more relaxing and enjoyable to grow just a few plants (or even just one). On the other hand, growing many plants at a time produces more strains, more often. The right choice depends on you and your needs.

3 plants (5-gallon pots)

If you can legally grow as many marijuana plants as you want and are willing to put in the extra time and effort to grow as many plants as necessary, what’s the best number of plants to grow?

4 plants (3-gallon pots)

That means even if you can only grow a few plants at a time, you can still get the same yields in your grow space as someone who can grow more plants! It just might take a little bit longer in the vegetative stage.

7 plants (2-gallon pots)

Growing Many Plants Shortens the Vegetative Stage But Doesn’t Necessarily Increase Yields.

It took 8 weeks in the vegetative stage to train the plant to grow this way. Yet it was a joy to focus on just one plant and get to form a relationship with it.

But in the end, the actual yields will be about the same as long as the space does get filled. Given the same total number of colas and size of plants, it won’t matter much if you have one plant or twenty as far as yields are concerned.

The optimum number of plants depends mostly the size of the area under the grow light. A plant generally should get at least a foot of space to itself to really be able to grow and spread out, and it’s often better to give plants a little more space, especially if you have powerful grow lights like HPS or LEDs!

These two plants fill this entire 4’x4′ space, but you could get the same amount of canopy coverage with many smaller plants. It’s up to you to decide how you want to fill your space.

However, time might not be the main concern. Many growers don’t mind an extra few weeks in the vegetative stage if it makes the growing process easier and more fun.

Keep in Mind! Your yields are limited by the size of your grow light, not the number of plants. Light is like food for your plants and has a direct correlation with yields. The more plants you grow, the less each individual plant will get as far as light. Think of your grow light like a pie, with each additional plant getting a smaller slice to eat every day.

There are a few different schools of thought when it comes to the best number of marijuana plants to grow in an indoor setup. I’ll walk you through the benefits of growing just one plant vs the benefits of growing many, and then give you some real-life examples with specific setups. That way you get the information you need to make the best decision for your garden.

All of the following grows took place in a 2’x4’x6′ tent and produced a comparable amount of weed.

One or Many Cannabis Plants: Costs vs Benefits.

Each plant should get plenty of direct light and at least a foot or two of space to itself.

Always start with more plants than you need, just in case! But remember, you may have to throw some of them away…

In the flowering stage, the plant rewarded the effort with buds that filled the space where the plant was trained.

These suggestions definitely aren’t set in stone, but they serve to give you general starting guidelines. It is possible to grow more plants in these spaces successfully, but with more plants, you will often start running into difficulty being able to reach the plants in the back and care for them properly. Sometimes it’s more of a pain than it’s worth.

Should you grow just one cannabis plant or many to maximize your yields? What’s the best number of plants to grow considering your grow light and the size of your grow space?

Growing Just 1-2 Cannabis Plants at a Time.

What’s the “Optimal” Number of Cannabis Plants?

No Matter How Many Plants You Grow…

It can be hard deciding what number of plants to grow in your space, but ultimately the best thing you can do is to pick a number and dive right in to growing. I believe in listening to your gut. When in doubt, always start with more plants than you need so you have the option of ditching any plant that doesn’t germinate, grows poorly, or ends up being a male or hermie.

When it comes to getting the best yields as fast as possible, you will often have better luck growing several plants than just one or two. This is because it takes several plants less time to completely fill up a space than it would take one plant to fill up that same space.

Suggestions for Example Grow Spaces.

Each grower has a different style, and as you get more experience, you’ll be able to dial in your grow to what’s best for you and your setup.

The SOG method is the best one if you’d like to get the most out of your available area. By using SOG, plants get 1-2 weeks of vegetative growth, after which they are stimulated to enter the flowering stage. When using this method, you won’t need to prune or train your plants since they won’t have enough time to branch out, and in the end you get short main colas. For the SOG method you’ll need a 400W HPS light. This type of cultivation can fit 4-16 plants in a 10 sq ft area and can result in several harvests per year of about 500g/m².

On the other hand, lollipopping can be done on untrained plants, by trimming all the branches of unnecessary growth and only leaving the main bud and the side branches with large buds . This way the plant directs nutrients and energy toward the largest buds.

Based on the dimensions of your pots, you could fit several pots into one square foot. Moreover, if you decide to use larger pots, you’ll cultivate bigger plants. Should you decide to cultivate inside, an average guideline to follow is to have around nine 11-litre pots in about 10 square feet.

The cultivation of commercial cannabis feels like a less daunting task if you actually research how to properly do it first. You’ll find that in order to produce a good amount of weed at the end of the flowering stage, marijuana plants need adequate grow room. To accomplish that, cultivators need to provide the appropriate conditions for the plants to thrive.

The number of plants you can grow per square foot will largely depend on how big your growing area is. If you are growing at home, it’s possible that you’ll be using a grow tent. They are available in different sizes and they range from small tents 1.6 x 1.6 feet, to large tents that fit every grower’s needs.

Topping and Fimming.

Growing cannabis requires researching particular growing methods and choosing the best one for you. In order to get the best yield, you’ll need to provide your plants with enough grow-area as well as an adequate amount of light.

Before you do anything else, you need to decide which cannabis strain you’ll be growing. Cannabis growers can decide between cultivating Sativas, which grow tall, and Indicas, which are short and bushy. On the other hand, photoperiod plants grow taller, while autoflowers have varieties that only reach 50-60 cm.

Other helpful pot sizes would be:

In order to determine the number of plants that can fit per square foot, you’ll need to take the following factors into consideration.

This technique is beginner friendly. The cultivator bends and ties the stems to each other in order to make the plants go horizontally . You could combine it with ScrOG and topping. LST yields 2-4 large plants or 4-6 medium plants per sq ft.

By using the topping and fimming method, you break off the main growing tip so it develops a few main colas, rather than just one. This is a high-stress technique and results in bushier growth. On the other hand, it involves damaging your plants, slowing down the growth, and extending the vegetative stage. If you opt for this method, you shouldn’t do it more than 2-3 times per growing season. In order to try topping and fimming, you’ll need 2 large plants or 5-10 small plants per 10 sq ft.

Next, you’ll need to decide whether you want to grow indoors or outdoors . If you choose to cultivate your marijuana indoors, you’ll also need to have in mind the space needed for grow lights. Moreover, if you decide to grow multiple strains, you’ll need to organize them appropriately in order for taller plants not to overshadow smaller plants. The smaller the plants you choose, the more plants you could fit per square foot.

And one of the most popular questions that concerns cannabis growers is how many cannabis plants can be planted per square foot.

The following training techniques are made to optimize the space you have in order to harvest a maximum amount of weed.

Low Stress Training.

For example, if you decide to grow an Indica plant, you might need a tent that’s 3.2 x 3.2 feet. Also, you should remember that apart from the plant, you’ll need room for the lighting, ventilation, and other equipment.

To do mainlining, you’d mix topping, LST, lollipopping, and ScrOG. The method is done by topping the third node of the cannabis plant and cutting the lower branches. By doing this, the plant develops equally from the central hub, and by topping it more than once, you can even develop a canopy.

Depending on whether you want to grow larger plants for commercial use, or you are cultivating an individual plant in order to satisfy your personal needs for medical marijuana, you’ll need to provide the plant with an adequate growth area.

The best way to take advantage of your growing space is to use the SCROG method. This training method is done by weaving the cannabis plants to get a grid-like mesh. If you decide to give this method a try, you should do it in the vegetative phase and end it before the third week of blooming. This yields 1-2 large plants if you’re going for the big ones, or 4 medium sized plants per 10 square foot area.

These techniques promote the growth of large buds at the end of the branches. In order to cultivate your marijuana this way, you should plant 1 large or 2-4 small plants per sq ft.

As it was previously stated, the most important factors when you start to cultivate your own weed are determining your grow space and grow lights. You’ll need to know that grow lights don’t disperse their light equally. They generally light the buds that are directly underneath the light, and decrease towards the sides. In order not to sacrifice yields, you should grow fewer plants under an adequate amount of light and get the right wattage for the strain you are deciding to cultivate. You could use LED lights and HID (high-intensity discharge) lights, depending on your preference.

Training Your Plants to Fit a Certain Area.

Different methods require a different grow area as different marijuana plants have different needs in terms of cultivation. Depending on whether you choose LST as your desired method for cultivation and yield 2-4 large plants per square foot, or you choose mainlining and cultivate 1 plant per square foot, in the end what’s most important is that you are satisfied with the yield your plants give.

To know how much profit can be made growing marijuana in a 10,000 greenhouse is impossible to predict because other factors come into play. There might be unique circumstances for you that can affect profit, and saying a specific number would be unfair. However, let us assume that if your greenhouse manages to sell 1,400 pounds of marijuana, your gross profit could reach $1,000,000.

This number will surely inspire anyone to venture into marijuana cultivation in the greenhouse. Still, the emphasis is necessary on how the size of your greenhouse also affects profit . Many experts would suggest that the ideal is 10,000 square feet to get the most of your greenhouse.