[Beginners Guide] on How and When to Transplant Marijuana Plant

When to transplant cannabis, the plant is one of the most common doubts of beginning growers. In this guide, we are going to talk about everything related to the transplant of our beloved weed plants.

The appropriate phase to perform the transplant is the growth period, during which we must choose the exact moment to ensure that our little ones suffer the least possible stress.

As usually happens in the cultivation of plants, observation is going to be our best ally to take this step. If you can see the decay of the leaves even if the temperature and watering are adequate, you can assume that the roots have reached the limit of the current pot. If you notice that the plant has stopped growing, begins to show deficiencies, yellowing, and necrosis of the leaves or lack of vigor, you may have to change the pot.

The perfect time for transplanting is when the marijuana plant root has colonized the entire pot but without curling into the bottom or creating a wall attached to the sides of the pot.

When to transplant auto-flowering marijuana? In the case of auto-flowering marijuana varieties, it is best to transfer them to their final container as soon as possible. This is because auto-flowering genetics have a very short growth period. If we subject the plants to stress, they will stop growing for a few days at this important stage for their development, negatively affecting the final production.


1) How to transplant cannabis plants?

2) Advantages of transplanting marijuana

3) Precautions when transplanting


1) How to Transplant Cannabis Plants?

The ideal is to use anti-stress pots in the growth phase, being able to perform up to 4 transplants. if you are going to grow outdoors, and one or two if it is indoors, depending on the time they are exposed to light, the final size that we want to give them, and the genetics of each plant.

The way to transplant safer and with less stress for the plant would be:

When you go to transplant marijuana, abundantly water the plant a couple of days before, so that when you go to change the pot, it is not too wet that drips mud, nor so dry that it crumbles, only wet and compact.

Insert the pot with the plant in the new container, calculate how much substrate you need and how tall you want to leave it, etc. Fill the pot with the substrate as far as you see it is necessary, leaving the hole in the pot as free as possible after removing it. Press the soil of the old pot to compact, being careful not to damage the roots, do not dig your fingers into the soil.



Place the palm of the hand over the mouth of the container, leaving the trunk between the index finger and the heart, turn it until it is face down. The pot will be on top, remove it, and leave the root ball in the air.

If the roots are well-formed, it should be a compact block, without excess roots, especially at the bottom. These should be white and healthy-looking, with no stains or strange odors. If not, you may have passed the time, next time remember to do it a little earlier. But better late than never.

The opposite situation will occur if the contents of the pot crumble or crack on your hand, in this case, leave everything as it is and wait a few days.

Put the plant, now without a pot in the new container, remember to water it little, more or less the same amount as with the old one, to avoid excess water and rot for a couple of days.

For the last transplant, we recommend the use of fabric pots. Not only because they are easy to handle and optimize space, but also because they achieve total transpiration, which provides more oxygen to the roots. It does not have a “pot effect”, as the roots pass through the fabric and die naturally in contact with the air, creating a denser and more orderly root structure, instead of accumulating at the edges and bottom.

They are washable and reusable. Very comfortable to carry thanks to its handles. Some of them are biodegradable or made with recycled materials. They can be used with drip systems or flood trays because they are permeable. It prevents the roots from rotting. They are easy to store and transport. They are available in black and white, and in a multitude of sizes and capacities, from 1 liter to 150.

2) Advantages of Transplanting Marijuana

One of the main advantages (especially indoors) is the use of space. If you have many germinating plants or many roots cuttings, it can be beneficial to have many plants in small pots and make a selection of the most vigorous ones, to pass them to the growth zone and discard those that do not have enough strength or size.

Normally the growth zone must be optimized. Selecting the best plants or the ones most similar in size and vigor allows us more productive crops. This will also allow you to have a crop blooming in the main area and cuttings or seeds preparing in a smaller place and with less powerful lights, to pass them to the main area when the other crop is harvested. This can be done by sowing the seeds the same day that the plants are stopped feeding indoors.

When we transplant marijuana, we can optimize the cultivation space much more. In the place where you have small plants, it will be easier to control the temperature and humidity.

A small propagator or a tray of 100 alveoli occupies a maximum of one square meter, and less than 50 cm in height, which allows us to use little energy and effort to control these parameters. Sometimes, there is no other option directly because the temperature or humidity cannot be regulated at the final site of the plants, such as outdoors or very cold houses in winter. This will also save us seeds since many more will germinate than in a less controllable environment.

To advance the harvest if you are going to put it outdoors, you can make your cannabis plant and put them outdoors when you make sure that no more night frosts are going to come. This will avoid sudden changes in temperature, which will lower production and may even destroy all our production. We can avoid this problem when we transplant marijuana.

It is easier to control the humidity of a small pot, which all its roots can access and absorb, than a large one, which can accumulate water at the bottom and rot the roots.

Caring for small plants is obviously easier than large ones. Moving them to relocate them, clean them, check pests, is infinitely easier, which gives us greater control over the crop.

Outdoors, it is useful to prevent small wild animals, such as mice and aviaries, from eating the juicy shoots of our dear friends. Once they are stronger and less appetizing, we will move them to their final location.
It can also serve to ensure good roots, as we can choose the perfect substrate and additives and track root growth so that they are strong and expand well in the final substrate.

It is also useful for shaping the plant, as a small but deep pot will give you the feeling that it has very close neighbors, so it will tend to grow vertically, developing less lateral branches and more central bud.

3) Precautions When Transplanting

When we transplant marijuana, we put it under stress. This can translate into a delay in its development, so we will try to perform the transplant as quickly and cleanly as possible.

You have to control the plants more exhaustively, unless you have an automatic irrigation system, as it has less amount of soil it dries earlier and if the plant grows a lot it can be overwhelmed by the size of the pot or run out of nutrients.

You will have to work more, because first it is sown and then it is transplanted, as many times as you consider appropriate.

The roots do not like to be outdoors, even less than it is in direct light. As they are very delicate, sometimes we damage them by removing them from one container to another. There are plants like some cucurbits, peas, and beans that are not recommended for this reason. Remember to be very careful with the small roots.

We hope that this article has clarified many doubts about how and when to transplant marijuana. If you have any questions left unresolved, you can leave a comment and we will be happy to answer them.

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