how to grow big cannabis plants indoors

Cannabis, like all plants, prefers certain environmental conditions in order to thrive. Temperature, humidity, light intensity, and airflow are all factors that will need to be monitored and regulated in order to keep cannabis healthy through its different phases.

Terra cotta pots offer a unique set of benefits to growers in hot climates.

Make sure all equipment is on, no breakers have flipped, and everything is running smoothly. Check lights, timers, fans, dehueys, ACs, and anything else that plugs into the wall or has a battery.

Privacy and security.

Most dehumidifiers and ACs have built-in thermostats, but if they don’t, you’ll want to buy an external one.

For growers who have a little extra money to spend and want full control over their indoor garden, environmental controllers will allow you to automate the process. These devices are essential for if you’re away from the garden for a long period of time.

Equip yourself with these cheap and easy-to-use tools to take measurements in your indoor cannabis setup:

Odor becomes much more difficult to manage in the final six weeks of a marijuana plant’s life, when trichomes and terpene production ramps up. You can also get odor-absorbing gels, which replace weed smells with other scents. Keep in mind that odor gels don’t eliminate odors, but simply mask them.

You can make this yourself by combining worm castings, bat guano, and other components with a good soil and letting it sit for a few weeks, or it can be purchased pre-made from a local nursery or grow shop.

Soil is the most traditional medium for growing marijuana indoors, as well as the most forgiving, making it a good choice for first-time growers. Any high-quality potting soil will work, as long as it doesn’t contain artificial extended release fertilizer—like Miracle Gro—which is unsuitable for growing good cannabis.

Fabric containers.

For most first-time gardeners, we recommend buying a quality potting soil that will provide your plants with enough nutrients to get them through most of their growth cycle without having to add many amendments or liquid nutrients. This pre-fertilized soil—often referred to as “super-soil”—that can grow cannabis plants from start to finish without any added nutrients if used correctly.

That’s a big variance, but it really depends on how big you want your plants and how often you want to harvest—you can have multiple harvests of smaller plants, or less harvests of bigger plants.

Standard plastic containers are a popular option for growers operating on a budget. These pots are inexpensive and provide the essentials for your plants.

So when growing weed indoors, you can control the size of your plants by flipping them into flower whenever you think they’re big enough in the vegetative stage.

Equipment.

HID (high-intensity discharge) lights are the industry standard, widely used for their combination of output, efficiency, and value. They cost a bit more than incandescent or fluorescent fixtures, but produce far more light per unit of electricity used. Conversely, they are not as efficient as LED lighting, but they cost much less.

The growth stages of marijuana can be broken down into four primary stages from seed to harvest:

It’s a good idea to start small—the smaller the grow, the less expensive it is to set up. Newbie mistakes will be less costly if you only have a handful of plants. Additionally, most state laws only allow for growing six plants, but some allow up to 12.

This is easily achieved by placing an exhaust fan near the top of the space to suck out warm air—warm air rises—and adding a port or passive fan on the opposite side of the space near the floor to bring in cool air. A complete air exchange throughout the entire grow space should occur once every minute or so.

But the benefits are great: LEDs last much longer, use far less electricity, create less heat, and the best designs generate a fuller spectrum of light, which can get bigger yields and better quality.

We recommend pruning during the vegetative stage to ensure the plant has time to recover and grow large leaves. Wait a minimum of 72 hours after pruning before forcing your plants into the flowering stage.

As a result, it is imperative that your lighting is at the right height from the get-go. Otherwise, your marijuana plants could suffer from heat stress . If you are growing your weed indoors, you can move your lights a bit closer to the plants. This is safe as long as the temperature the plants are exposed to doesn’t exceed 80 degrees Fahrenheit.

At the beginning of the flowering stage, it is vital that cannabis plants receive more phosphorus than potassium.

How to Make Bigger Buds During Flowering.

Genetic considerations aside, there are a variety of tactics you can use to increase the size of your cannabis buds. These tactics may be different depending on whether you grow your plants indoors or outdoors.

Whatever school of thought you adhere to, it is vital that the cannabis plants receive enough nitrogen in the vegetative stage to grow bigger and stronger.

The grow room temperature and humidity must also be at the correct levels for your cannabis plants to reach their full potential, and to prevent problems like bud rot .

When you train your marijuana plants, you ensure the central stalk’s growth hormones are redistributed to the other branches. This ensures even growth for the whole plant. Ultimately, you benefit from an even group of branches that grow a large cola apiece. This is due to them all being a similar distance from the light.

We put trichomes under the mic…

However, if you want the female plants in your grow room to flourish, it is essential that you also provide them with a well-balanced mix of micronutrients. Ensure the feeds include sufficient levels of iron, calcium, magnesium, zinc, copper, boron, manganese, and sulfur.

Training Your Cannabis Plants.

As a proud marijuana grower, you know the main goal is to grow the most massive and healthiest buds possible. It is incredibly disappointing to spend several months caring for your plants only to achieve a mediocre harvest.

If your goal is to grow bigger marijuana plants that produce high yields, then choosing the correct type of grow lights for your indoor grow room is essential. Many indoor growers recommend HPS grow lights, but you could also use fluorescents; however, they are a more expensive option.

You also need to make sure that the grow room temperature and humidity are at the optimal levels from seedling to harvest. To grow buds that are massive and produce high yields, you also have to increase the light intensity and C02 levels accordingly during the flowering stage.

For the uninitiated, a plant’s node is where a branch or leaf grows off the stalk. The node is also where you’ll find your cannabis buds. The bigger the plant, the more nodes spring up. As a result, there are more places where buds can grow. However, don’t make the mistake of assuming that an increase in nodes automatically means more abundant and bigger buds.

The Importance of Soil pH.

The same is true for the large fan leaves at the bottom of the marijuana plant. By defoliating the fan leaves, you can improve airflow and increase the amount of light that the lower nodes receive. Naturally, removing the fan leaves will mean that more energy is distributed to other parts of the plant, including the cannabis buds. So, if you want to increase the size of the marijuana plant’s buds, then defoliation is one of the simplest methods, to begin with.

When growing in soil, it is absolutely vital that the soil’s pH is at the right level. The pH level of the soil affects how cannabis plants absorb nutrients. So, regardless of whether you are providing your marijuana plants with the perfect amount of nutrients, having the soil’s pH at the wrong level can lead to nutrient deficiencies. For instance, marijuana plants don’t absorb magnesium well when the pH level is too low. If growing in soil, experienced cannabis growers recommend keeping the pH at around 6.0. Reduce the pH level to 5.5 if growing hydroponically.

Buds thrive on phosphorus at the beginning of the flowering stage, so try a mix of 30% P, 10% K, and 10% N; i.e., NPK 10-30-10.

You must ensure your marijuana plants receive enough nitrogen (N), phosphorus (P), and potassium (K) at varying stages of the growth cycle . Typically, your plants need more nitrogen during the vegetative stage, and more phosphorus and potassium during flowering.

Also known as CO2, carbon dioxide is crucial to the flowering and overall growth of your cannabis plant. When it comes to plants, more CO2 is better. For the record, there is usually 350-400 ppm of carbon dioxide in the air. Your plants combine that CO2 with light energy to create the sugars it needs. If you add more CO2 to the grow room (by adding some CO2 canisters, for example) but fail to simultaneously increase the light intensity, you will not grow bigger cannabis buds. To grow massive cannabis buds and achieve high yields, it is vital that you increase both the CO2 level and the light intensity together. Some growers say that doing so can double their yields from a single harvest.

Although we haven’t grown the Tangerine Dream strain ourselves, this enchanting strain has remarkable effects and looks/smells beautiful! We were pleasantly surprised to find out it also tends to produce high yields!

Nutrients are important to healthy growth, but it’s important to understand that going overboard will cause more harm than good.

2.) Manipulate plant structure (bend, net, top, etc) so all colas received strong & even light coverage.

Light is basically food for your plants. Turning light into energy via photosynthesis is how your plants get all their energy to grow and produce buds.

Yet if you keep nutrient levels low and allow the vegetative growth to die away during those last few weeks, the buds seem to swell up dramatically compared to a plant that is kept green all the way to harvest. By keeping nutrient levels lower as harvest approaches (or flushing the plant by feeding only plain water), you will also make sure that there is no leftover “nutrient taste” in the buds which never got the chance to be used up before harvest.

By supplementing your cannabis roots with extra sugar towards the end of flowering, you help improve the flavor of your buds while also fattening buds up.

Growing tips: This forgiving skunk strain is extremely easy to grow, and responds well to FIMing/topping/LST and other training methods. It gets to a nice size – not too tall, not too short – and about doubles in size after the switch to 12/12. This strain takes a little less than 3 months to finish flowering, but she makes up for it with great yields and long, dense buds. It tends to do best at relatively high levels of nutrients – we got great results feeding her at full strength.

4.) Control Temperature (and humidity)

Why do buds need to be exposed? In the wild, cannabis buds are pollinated by the wind and need light from the sun to power the growth of seeds. A cannabis bud in the wild which is not exposed to air and light is unlikely to get pollinated, so the plant tends to not put much effort into the hidden middle and lower buds on the plant. Only buds which are exposed to air and bright light will tend to fatten up.

Manipulating the plant in a way that doesn’t involve actually cutting your plant is often referred to as “LST” in the cannabis growing world, which is short for “Low Stress Training.”

Learn more about CO2 and it’s relationship to light intensity and marijuana yields here: https://www.growweedeasy.com/co2.

I like to think of nutrients like vitamins for humans. While humans need to get certain vitamins to survive, I want you to consider that people should never eat multi-vitamins like candy. In fact, if you give people more vitamins than their body can use, they will actually get very sick.

3.) Get the Right Cannabis Nutrients (and don’t overdo it!)

Harvest your cannabis at the right time to increase your yields.

Basically, supercropping means to bend your plant so that individual stems lay flat and form a “knuckle” where they were bent.

While all the tips and tactics above will help increase your yields with any marijuana strain, the genetics of your plant also play a huge role in how the plant grows, how the buds fatten, and ultimately your yields.

You need to provide enough light intensity to prevent young cannabis plants from stretching or growing too tall and falling over.

Bonus Tip For Soil Growers: Provide a source of sugar (blackstrap molasses works great) towards end of flowering stage to increase bud weight.

By allowing your buds to ripen fully, you will maximize your overall yields. I’ve seen buds gain up to 25% adiitional size (at least visually) in the last 2-3 weeks before harvest. If I’d harvested these buds earlier, I would have dramatically lowered my overall yields.

A lot of growers ask me how to increase the size, number and density of their buds so they get bigger yields. The truth is, for most growers, the most effective way to increase bud size in the flowering stage is to increase LIGHT INTENSITY.

If you consider that light is like food for your plant, maxing out the light is like putting so much food on the table that your plants hurt themselves trying to finish their plates.

And also make sure you professionally cure your newly harvested marijuana buds every time… https://www.growweedeasy.com/curing.

Yet once you’ve got a handle on how to successfully grow your cannabis plants, you must begin to understand the following 5 tactics in order to get the most yields from your indoor grow space…

Now I will mention the next technique so this section is complete, but I highly recommend against using this technique until you already have had at least a few successful grows under your belt . I also recommend mastering the other forms of plant training first, like all the ones mentioned above before trying this technique.

Learn how to tell when your cannabis buds are ready for harvest: https://www.growweedeasy.com/harvest.

But just getting the correct kind of nutrients and following a nutrient schedule isn’t the only step you should take. Unfortunately, for whatever reason, many growers tend to provide too high levels of nutrients to their plants. This is most common when growers mix many different nutrients and supplements together, without understanding what the plant needs to grow well.

The strains available today get much higher yields and are much more potent than any strains that were around even a decade ago. Strain potency, yields, and ease of growth have been improving steadily over the last several decades as hundreds of growers around the world are constantly breeding new strains and improving on old favorites.

Table of Contents.

The idea of LST is to manually force your plant to grow flat and wide, as opposed to tall and thin, usually using bending.

Bonus: Genetics Has a Major Effect on Yields (plus a few recommended high-yielding strains)