Ultimate Guide to Cannabis Pot Size
Does cannabis pot size affect plant growth? You bet it does! Container size makes all the difference for a good harvest! The right size container is the first step toward successful grows that thrive and flourish.
But how do you determine the right size? What are the advantages of one size over another? Choosing the correct sized pot isn’t as easy as it seems. In fact, it can be quite difficult and confusing.
The right choice depends on several factors. How many cannabis plants do you plan to grow in containers? Do you plan to use a grow tent? Will you grow indoors or outside? What marijuana strain will you grow? How much available space do you have for your cannabis grow containers?
Don’t worry and read on! Take advantage of this article to learn how to choose the best grow containers for your needs.
Cannabis Root Needs
First, let’s talk about what a pot is meant to protect—the roots.
During the germination of a marijuana plant, the first thing that emerges from cannabis seeds is the plant’s central tap root. As the cannabis plant grows, roots and tiny hairs branch off of the central root. A healthy marijuana plant will develop an underground structure that’s similar to the structure of the branches that are above ground.
Although you don’t see your cannabis plant’s roots, they require just as much care and consideration as the leaves and flowers. Cannabis plants breathe and absorb the nutrients they need through healthy root systems. They are fed through the plant’s roots.
So what do cannabis roots need to make plants thrive? Primarily, room for the plants to grow, proper draining, and no competition for nutrients.
Room To Grow
More than anything else, marijuana plant roots need enough space to grow properly in their environment. This is especially true in the vegetative stage of growth. Root growth in the vegetative state is directly related to the plant’s ability to manage water and nutrients in the flowering phase.
If the container doesn’t have enough room, the roots become tangled together. This is known as “root bound” (or sometimes “pot bound”). In pot bound plants, root development and growth is inhibited. If that happens, your marijuana plants won’t get the nutrients they need. This can lead to nutrient deficiencies and lower yields. Make sure they have enough room if you want big yields!
That said, there’s such a thing as too much room. If your marijuana plant is in a larger pot than it needs, your soil will stay wet. If you soak your plant, they are susceptible to root rot.
To support healthy roots, your soil should stay a little wet. It should never be soaked. Make sure your soil dries between each watering. It should retain just enough to keep moist and not be completely dry. No overwatering! Waterlogged soil, excess water, and moisture can eventually cause root disease. Cannabis pots need good draining to keep dry. Get rid of all the moisture.
Marijuana growers should avoid using the wrong containers. Avoid containers unless they’re designed specifically for growing plants. A Solo cup might seem like a cheap solution, but when your crop fails and your plants die because of runoff water, you’ll see that isn’t the case! And although a pottery bowl is pretty, it won’t look so great when it’s holding a dead shrub covered with pests!
Pots designed for growing have drainage holes in the bottom to manage water. Containers that are fabric pots or plastic pots that have holes everywhere are even better. You don’t want to waste time drilling holes in pots that weren’t designed for plants!
Place large trays or saucers under the pot to collect any excess water that drains out after watering. Some people use a matching saucer or trays that match the size of the pot. The shapes aren’t an issue as long as you ensure that you catch the water runoff!
If it’s not impossible, install a drainage system so that your plants never sit in stagnant water. If you can’t setup a drain, empty the runoff water from the saucers after each watering. You don’t want excess moisture in your garden from water runoff!
Never put more than one weed plant in the same pot, no matter what size it is. Each plant should be contained in its own pot. If more plants are in a pot, the roots compete for the nutrients you pour in the pot. With this method, none of them will reach their full potential.
There’s another good reason to set a limit of one per container. If trouble occurs in one container (for example, build-up of toxic nutrient levels), you’ll only lose one plant.
What Cannabis Pot Size Should I Use?
Now that you understand what cannabis roots need, you can see why pot size is so important! But what pot size is best? Your marijuana plant will live in two or three separate containers during its life. You’ll use different pot sizes (in gallons or litres) each time.
One thing to remember is to start small with seedlings. They need large amounts of pampering to begin the best way. During the early stages of growth, sow your seeds in a seed starter kit designed for baby plants.
Most starter kits for cannabis seeds have an insert with several small cells. Put your seeds in one cell each. The kits also have a humidity dome with an air vent and a tray at the bottom to collect excess water.
You can’t go wrong by purchasing a pack of 5 or 10 trays at the Amazon market place website. It won’t cost much money. Put it in your cart for less than $10.
Don’t forget the importance of the right media for your cannabis seedlings. To avoid stressing your marijuana plants, always decide and start with the media you’ll use during your plant’s life. If you choose to cultivate in rockwool, start with rockwool. If you choose to cultivate in soil, start with soil. You can use any form of media in a seed starter kit.
Seedlings are ready to transplant to a larger container when several white roots come out. If there are only one or two, the seedling needs more root development first.
Transplanting success is closely tied with how quickly you deliver them into the containers. Work quickly! A good process is key. The tiny, exposed hairs will desiccate if they are exposed for more than two minutes.
Transfer the young plants to fresh soil in clean containers. Sprinkle some mycorrhizae fungi on the fresh soil before you transplant. The overlooked task of adding microorganisms will really help!
The first time you transplant, move your cannabis plant into a 2 to 5 gallon pot. How do you decide the right pot size? Which pot sizes are correct? Here are some things to consider:
- Will you grow indoors or outdoors? If you’re growing inside, use a small container. If you’re growing outdoors, the sky (literally) is the limit! You won’t be limited in any way. That means you can use large pots when growing outside.
- If you’re growing marijuana inside, how big is your grow space? A full-grown adult cannabis plant takes around four square feet of space. That’s a lot of space—especially if you’re growing marijuana in a small space like an indoor grow tent. It’s vital to have easy access to your garden. Don’t let large pots get in your way. A grow tent pot size should be around 3 gallons (11 liters). You can reduce the size of your weed by limiting how long you keep it in the vegetative stage of growth. If you want to do that, go with a small pot or small pots. If you have more room, use large pots or a large container.
- What strains will you cultivate? Sativas tend to spread out a lot more than indicas. Since the cannabis plant root structure is similar to its branch structure, a sativa strain needs a bigger pot than an indica plant. Smaller plants need smaller pots.
- Do you want to maximize yields? If you want to produce as much weed as possible, you’ll need bigger containers to hold your massive plants!
- How much can you lift? If you’re not strong, use a small container. It needs to be light enough to pick up and move. You can’t do that with a heavy weight.
You may wonder about the vegetative cycle for 1 gallon pot vs 3 gallon pot. How long to veg in 3 gallon pots? 30 to 35 days (5 weeks). How long to veg in 1 gallon pot? 2 or 3 weeks (14 to 21 days).
Can you flower in 1 gallon pots? You can, but it’s not a good idea. The smaller the pot, the faster growth cycle you should have. Note that when flowering in 1 gallon pots, the Screen of Green method is recommended. With big pots, you can veg as slow as you want.
Outdoor growing gives you the freedom to do what you want. If you’re growing outdoors or in a huge indoor grow space, you aren’t limited at all! You can let your cannabis plants grow as huge as you want (at least to the extent you can handle).
In this case, you may need to repot your weed more than once. As a general rule of thumb, pot size should double each time a plant is transplanted for good balance. The bigger the plant, the bigger pot you need.
So what is the best pot size based on the plant size? Growing larger plants requires larger pots. Check out this plant pot sizes chart. It shows plant height to pot size ratio!
Cannabis seeds 101: How to grow marijuana from seed
Cannabis is grown from one of two sources: a seed or a clone. Seeds carry genetic information from two parent plants and can express many different combinations of traits: some from the mother, some from the father, and some traits from both.
In commercial cannabis production, generally, growers will plant many seeds of one strain and choose the best plant. They will then take clones from that individual plant, which allows for consistent genetics for mass production.
If cannabis is legal in your state, you can buy seeds or clones from a local dispensary, or online through various seed banks.
Cannabis seeds vs. clones
For the typical homegrower, it may be easier to obtain cannabis seeds rather than clones. Growing from seed can produce a stronger plant with more solid genetics.
Plants grown from seed can be more hearty as young plants when compared to clones, mainly because seeds have a strong taproot. You can plant seeds directly into an outdoor garden in early spring, even in cool, wet climates.
If growing outside, some growers prefer to germinate seeds inside because they are delicate in the beginning stages of growth. Indoors, you can give weed seedlings supplemental light to help them along, and then transplant them outside when big enough.
Most seeds that you will buy are regular seeds as described above, but here are a couple more types.
How weed seeds work
Cannabis can be either male or female—also called “dioecious”—but only females produce the buds we all know and love. For reproduction, males have pollen sacs and pollinate females, causing female flowers to produce seeds.
Once cannabis seeds are mature, the female plant begins to die, and seeds are either dropped to the ground where they grow into new cannabis plants next spring, or the seeds are harvested for processing into seed oil or food products, or stored so they can be sown in the ground later and become the next generation of plants.
To get the buds found in medical and recreational stores, female cannabis plants are grown in an environment without males—or the males are removed from the area before they release pollen—so the females don’t create seeds. Females can then focus their energies on producing buds and not seeds—this high-potency marijuana is traditionally known as “sinsemilla,” meaning “seedless.”
Some varieties of cannabis can produce male parts alongside female flowers on the same plant, especially if exposed to environmental stressors. These plants are known as hermaphrodites, and sometimes they can self-pollinate to create seeds.
Pros and cons of using cannabis seeds
Check out Johanna’s full video series on how to grow weed on Leafly’s YouTube .
If buying from a reputable breeder or seed bank, growing from seed is the best way to ensure your plants will have solid genetics and start clean, meaning they won’t come with diseases or pests.
Also, buying from a reputable breeder or seed bank will give you a sense of what a particular strain will look and smell like, how it will grow, and how much it will yield at harvest.
The main drawback to growing from seed is there is no guarantee as to what you’ll end up with—if you buy a regular pack of cannabis seeds, it will be a mix of males and females. You’ll need to sex them out (more below) to identify the males and get rid of them, because you don’t want your females producing seeds.
Sexing marijuana plants can be a time-consuming process, and if you don’t catch males, there is a risk that even one males can pollinate your entire crop, causing all of your female weed plants to produce seeds.
One way to avoid sexing plants is to buy feminized seeds (more below), which ensures every seed you plant will be a bud-producing female.
You can also minimize headaches and avoid the hassle of seed germination and sexing plants by starting with clones.
How weed clones work
Aside from producing cannabis through seeds, or sexual reproduction, you can also reproduce the plant through cloning, or asexual reproduction. A clone is a cutting that is genetically identical to the plant it was taken from—that plant is known as the “mother.”
Pros and cons of using cannabis clones
Through cloning, you can create a new harvest with exact replicas of your favorite plant. Because genetics are identical, a clone will give you a plant with the same characteristics as the mother, such as flavor, cannabinoid profile, yield, grow time, etc. So if you come across a specific strain or phenotype you really like, you might want to clone it to reproduce more buds that have the same effects and characteristics.
With cloning, you don’t have to get new seeds every time you want to grow another plant—you just take a cutting of the old plant—and you don’t have to germinate seeds or sex them out and get rid of the males.
One drawback of clones is they need to be taken during the vegetative stage of a plant—flower is too late—so if you have a small setup with only one light, it can be hard to keep clones alive while flowering other plants, because the two need different amounts of light.
Another drawback to clones is they can take on negative traits from the mother plant as well. If the mother has a disease, attracts pests, or grows weak branches, its clones will probably have the same issues.
Additionally, every long-time grower will tell you that clones degrade over time.
What are feminized cannabis seeds?
Feminized cannabis seeds will produce only female plants for getting buds, so there is no need to remove males or worry about female plants getting pollinated. Feminized seeds are produced by causing the monoecious condition in a female cannabis plant—the resulting seeds are nearly identical to the self-pollinated female parent, as only one set of genes is present.
This is sometimes referred to as “cloning by seed” and will not produce any male plants. This is achieved through several methods:
- By spraying the plant with a solution of colloidal silver, a liquid containing tiny particles of silver
- Through a method known as rodelization, in which a female plant pushed past maturity can pollinate another female
- Spraying seeds with gibberellic acid, a hormone that triggers germination (this is much less common)
Most experienced or commercial growers will not use feminized seeds because they only contain one set of genes, and these should never be used for breeding purposes. However, a lot of beginning growers start with feminized seeds because they eliminate the worry of having to deal with male plants.
Top feminized cannabis strain families
A lot of classic weed strains that have been around for a while come in feminized form. Some popular fem seeds are:
- OG Kush
- GSC (Cookies)
What are autoflowering cannabis seeds?
Autoflowering seeds are also popular with beginning growers. They are easy to grow because you don’t have to worry about light cycles and how much light a plant receives.
Most cannabis plants begin flowering when the amount of light they receive on a daily basis reduces. Outdoors, this happens when the sun starts setting earlier in the day as the season turns from summer to autumn. Indoor growers can control when a plant flowers by reducing the daily amount of light plants receive from 18 hours to 12 hours.
However, a type of cannabis called Cannabis ruderalis, which developed in extreme northern conditions without much sunlight, will begin flowering once the plant reaches a certain age—they automatically start flowering regardless of the amount of light they receive, hence the name “autoflower.”
Pros and cons of growing autoflower
Because they grow and flower quicker, growers can fit in multiple autoflower cannabis harvests into the span of one regular harvest.
Autoflowers can be started in early spring and will flower during the longest days of summer, taking advantage of high quality light to get bigger yields. Or, if you get a late start in the growing season, you can start autoflowers in May or June and harvest in the fall.
Also, autoflower plants are small—perfect for closet grows or any small grow, or growing outdoors where you don’t want your neighbors to see what you’re up to.
A couple big drawbacks, though: Autoflower strains are known for being less potent. Also, because they are small in stature, they usually don’t produce big yields.
However, potency in autoflowering varieties has increased significantly since their initial introduction, with some breeders crossbreeding the low-THC ruderalis with other more potent varieties.
Tips for growing autoflower marijuana seeds
Autoflowering strains require some preparation, as they will grow quickly and start to flower whether or not you’re ready for them.
Many marijuana growers start autoflowers early in the season, and at a different time than a regular crop, so keep the season and climate in mind when growing and harvesting—your plants still need warmth to grow, and rain can give them bud rot. Consider growing in a greenhouse to protect them.
Because training happens during vegetative growth, for autoflowering plants, this period could be as short as a few weeks, which means time is limited. Try topping your autoflowers after they have three nodes, and stop once they begin to flower. You will want to prune them lightly.
Go easy on nutrients
Autoflowers don’t need lots of nutrients because they’re small and don’t spend much time in the vegetative cycle. They won’t need as much veg nutrients—such as nitrogen—but will need more bloom nutrients.
What are high-CBD cannabis seeds?
CBD, or cannabidiol, is one of the chemical components—known collectively as cannabinoids—found in the cannabis plant. Over the years, humans have selected plants for high-THC content, making cannabis with high levels of CBD rare. The genetic pathways through which THC is synthesized by the plant are different than those for CBD production.
Cannabis used for hemp production has been selected for other traits, including a low THC content, so as to comply with the 2018 Farm Bill. Consequently, many varieties of hemp produce significant quantities of CBD.
As interest in CBD as a medicine has grown, many breeders have crossed high-CBD hemp with cannabis. These strains have little or no THC, 1:1 ratios of THC and CBD, or some have a high-THC content along with significant amounts of CBD (3% or more).
Seeds for these varieties are now widely available online and through dispensaries. It should be noted, however, that any plant grown from these seeds is not guaranteed to produce high levels of CBD, as it takes many years to create a seed line that produces consistent results. A grower looking to produce cannabis with a certain THC to CBD ratio will need to grow from a tested and proven clone or seed.
How to germinate marijuana seeds
Germination is the process in which a seed sprouts and begins to grow into a new plant. Also referred to as “popping,” germination is the very first step in starting your weed grow.
Marijuana seeds can be acquired from an array of sources and can vary in quality. For more info on how to buy marijuana seeds, check out our Guide to buying cannabis seeds.
Cannabis seeds require three things to germinate: water, heat, and air. There are many methods to germinate seeds, but for the most common and simplest method, you will need:
- Two clean plates
- Four paper towels
- Distilled water
Take four sheets of paper towels and soak them with distilled water. The towels should be soaked but shouldn’t have excess water running off.
Take two of the paper towels and place them on a plate. Then, place the marijuana seeds at least an inch apart from each other and cover them with the remaining two water-soaked paper towels.
To create a dark, protected space, take another plate and flip it over to cover the seeds, like a dome.
Make sure the area the seeds are in is warm, somewhere between 70-85°F.
After completing these steps, it’s time to wait. Check the paper towels once a day to make sure they’re still saturated, and if they are losing moisture, apply more water to keep the seeds happy.
Some seeds germinate very rapidly while others can take a while, but generally, seeds should germinate in 3-10 days. If it’s been two weeks and a seed hasn’t sprouted, it’s probably a dud and won’t sprout.
A seed has germinated once the seed splits and a single sprout appears. The sprout is the taproot, which will become the main stem of the plant, and seeing it is a sign of successful germination.
It’s important to keep the delicate seed sterile, so don’t touch the seed or taproot as it begins to split.
Transplanting germinated cannabis seeds
Once you see the taproot, it’s time to transfer your germinated seed into its growing medium, such as soil.
- Fill a 4-inch or one-gallon pot with loose, airy potting soil
- Water the soil before you put the seed in; it should be wet but not drenched
- Poke a hole in the soil with a pen or pencil—the rule of thumb is: make the hole twice as deep as the seed is wide
- Using a pair of tweezers, gently place the seed in the hole with the taproot facing down
- Lightly cover it with soil
Keep a close eye on the temperature and moisture level of the soil to keep the seed happy. It’s very delicate at this stage. Use a spray bottle to water it—over-watering can suffocate and kill the delicate sprout.
Within a week or so you should see a seedling begin to grow from the soil.
Germinating cannabis seeds doesn’t always go as planned. Some seeds will be duds. Others will be slow and take longer to sprout. But some will pop quickly and grow rapidly.
This is the beauty of seeds—often, you can tell which plants or genetics will thrive right from the get-go. This will help you determine which plants you want to take cuttings from for clones or for breeding if you want to create a seed bank of your own.
How to sex a pot plant
Check out Johanna’s full video series on how to grow weed on Leafly’s YouTube .
As we’ve mentioned, cannabis is a dioecious plant, meaning male and female reproductive organs appear on different plants.
Because only female cannabis plants produce buds and you want them to focus all their energy on producing buds and not seeds, it’s important to identify and get rid of male weed plants so they don’t pollinate females. If females are pollinated, it will give you buds filled with seeds, making your weed harsh and unpleasant.
Cultivating males is important for breeders trying to cross new strains and genetics, but most people growing for buds will want to remove the males.
As mentioned above, you can skip the processing of sexing weed plants by growing with feminized seeds or clones.
If growing male and female cannabis seeds, they’ll start to show their sex organs, or “pre-flowers,” after 8-10 weeks from germination.
Cannabis plant sex organs appear on nodes, the points where branches grow off from the main stalk.
Males will have round balls—these will develop into pollen sacs, which will release pollen into the air when mature.
Females will have a round structure with long hairs—these hairs will develop into pistils, which will catch pollen in the air.
Pre-flowers can initially be extremely small and hard to identify with the naked eye, but you can use a magnifying glass to get a better look.
Can I grow a seed I found in a bag of weed?
Finding a cannabis seed in your stash is not ideal, but we’ve all been there before. Although much less common than it once was, it still happens. Sometimes you’ll notice one when grinding down some flower, or you’ll see one pop, spark, and crackle from the heat of a lit bowl.
These are referred to as “bagseeds” and whether or not you can grow one will depend on where it came from.
Is a bagseed good or bad?
Seeds found in finished cannabis buds can develop for a number of reasons. For example, a male plant may have accidentally pollinated a flowering female during the growing process. But more commonly, they’re a sign of stress and can be attributed to high temperatures during the final stages of flowering or an exaggerated spike in climate or environment.
Seeds can also form in plants with genetic disorders or instability, like hermaphrodites—plants that develop both male and female reproductive parts. Generally, stress and genetic disorders are viewed as bad, so temper expectations with any plant you start from a bagseed.
But sometimes you get lucky and find a mature seed in some really nice herb. Strains like the legendary Chemdog wouldn’t be possible without adventurous smokers planting and proliferating the seeds they found in a bag of kind bud.
So don’t discount bud because it has a seed or two in it. While not ideal, it could be the origins of the next great weed strain.
Ask yourself a few questions to decide if it’s worth the time and energy to grow the seed.
Was the seed found in good weed?
If you don’t like the flavor, effects, or even the look of the bud, then it’s probably not worth growing.
Are you ready to grow?
Growing marijuana takes a certain level of commitment: time, energy, and financial resources, so be sure you can commit to the whole process.
Is the seed viable?
For a seed to be viable, it must be mature enough to have a completely formed genetic blueprint, and it must be strong enough to germinate and pop through its hard casing and sprout its crucial taproot.
There are a few indicators that will give you a sense of whether the seed is worth germinating.
- Tiger stripes—dark stripes on the seed which resemble veins on a leaf are generally good
- Solid shell—a seed should be able to withstand a little pressure when pinched between your fingers; if it crumbles or cracks, it’s no good
Immature seeds tend to be light in color and have a soft outer shell.
In some cases, even if a seed isn’t completely mature, there’s still a chance it could be viable. But often these are extremely weak, take long to develop, and express other unfavorable characteristics. Growers usually discard weak plants to free up space.
You might also find a mature seed that has been physically damaged through poor handling, like rough trimming. In those cases, it probably isn’t worth the effort to try and germinate the seed.
But if the seed you found looks decent, you might as well germinate it and see what sprouts.
Time to germinate
Viable or not, there’s only one sure way to find out if a bagseed will grow. If you’re simply curious to learn and not as concerned with the overall outcome, you can plant a couple of bagseeds outside and see what happens.
If you’re ready for a more serious approach, make sure you have the space for a proper garden and pop the seeds to see what fruit they bear.
Even if your seed sprouts fast and grows vigorously, it still has roughly a 50/50 chance of being female and producing buds, instead of turning out to be a male.
Remember, once a seed germinates, the real work begins. Sexing, selecting, vegetative growth, flowering, and the eventual harvest all lie ahead.
How to buy cannabis seeds
Cannabis seeds can be found on numerous online seed banks, but note that it is illegal to bring seeds into the US and Customs will seize any cannabis seeds that they find in packages or on a person. In legal and medical states, you may purchase seeds at a dispensary.
What is the Best Size Pot to Grow Cannabis? Plant Container Sizes Explained
Every seemingly little aspect of the cultivation process matters when it comes to the final product.
From the amount of light cannabis receives to how much you water the plant, all the way down to the pot you grow it in.
Yes, the pot you use to plant your pot matters.
Even the pot’s size matters (sorry, fellas).
So, what is the best size pot to grow cannabis? Let’s get to the bottom of it.
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Getting to the Root of the Matter
If you want a happy pot plant, you need to make sure its roots are happy too.
After all, your cannabis plant grows from that very root!
You need to make sure that the pot you put your seedlings into allows enough room for the roots to grow and has plenty of areas underneath the soil that allows for drainage.
Moisture – When roots dry out, they die.
Oxygen – Any living thing needs to breathe this bad boy in.
Nutrients – The roots are the first line of defense when it comes to intaking nutrients. If the roots get fed, the plant gets fed.
Adequate pH Levels – pH levels change the genetic makeup of plants. So, ensuring the roots have the correct pH level can help reverse any damage that lousy pH levels may have done.
So when purchasing a pot with roots in mind, you want to make sure there’s a lot of holes at the bottom so that the plant doesn’t become overwatered.
Under the pot, you want to place a tray or saucer to catch excess water (unless you want to flood your house).
The soil will also slowly absorb this extra water keeping them happy.
Warnings for Little Seedlings
When you are beginning your cannabis cultivation, you want to start small.
If you place a bunch of tiny seedlings into a large container, it dramatically increases the odds that you will overwater them.
When this happens, you deprive the plant of oxygen, effectively choking the life out of it.
Also, planting seedlings into a larger container can slow down the process.
Therefore, a lot of people starting their growing journey like to put their seedlings into a SOLO cup.
See, there’s more to those things than just being beer pong party cups!
If you do use a SOLO cup for this process, be sure to poke enough holes at the bottom to provide adequate drainage for the plant.
When you start the planting process, you will have to water your seedlings almost every day.
Seeing as there is so little soil in the space, the roots pretty much soak up everything you pour into the cup.
If SOLO cups aren’t your thing, you can also start off with a 1-gallon pot.
As the Pot Grows So Does the Pot
Marijuana plants are sort of like koi fish.
They grow in relation to the environment that they are planted in.
As the leaves start to hover around the rim of the SOLO cup, it’s time to move the little fish into a bigger pond.
When the seedlings reach this point, you want to transplant them into a container that’s about twice the size of the one that they came from.
Repot the seeds and follow this process as your plant continues to grow.
How to Repot Cannabis Seedlings
Transplanting seedlings can sometimes be too shocking for the plant to survive.
Here are some tips to successfully switch from a small pot to a larger one without killing off your plant.
- Water the seedlings first. You want some of the soil to hold onto the roots so that they don’t dry out as you repot them. Water will make sure the soil latches onto the roots and covers them up during this process.
- Don’t tug the seedlings. To avoid damage, use a butter knife or trowel to pick the seedlings from the soil.
- Lightly remove seedlings from one another if they are stuck together.
- Place them in a new pot. Mix in some old soil that it used to along with new soil full of nutrients.
What is the Best Size Pot to Grow Cannabis
As your plant continues to grow, the size of the pots increases as well.
Therefore, how big a pot you need to buy depends on how big you want your cannabis plant to be.
Rule of thumb, your pot should hold up to 2 gallons per 1 foot in height.
While this is a general guideline to follow, it is not set in stone.
Like all living things, each plant is unique.
Depending on access to light, amount of water, and the microorganisms living about in the soil, all cannabis plants will come in different heights and widths.
Therefore, you must determine if you need a new pot as the plant continues to grow.
However, if you have the desired height in mind, here’s a helpful breakdown of which size pot should be adequate space for the size of plant you hope to grow:
- 2-3 gallon pot ~ 12-inch plant
- 3-5 gallon pot ~ 24-inch plant
- 6-8 gallon pot ~ 36-inch plant
- 8-10 gallon pot ~ 48-inch plant
- 12 and over gallon pot ~ 60-inch plant
What is the best size pot to grow cannabis?
Well, that depends on the stage of life your plants are in and the size you plan on growing them.
Ideally, you want to transplant the plant as little as possible.
So, after you sprout your seeds in a small pot, move them to the size you plan on keeping them for the rest of the grow. Be sure to buy your seeds from the ones we recommend here.