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Blog article:
Repotting cannabis plants
Green oasis at home?
If you plan to growing cannabis yourself, repotting is an important step in the process. It's not just about giving the roots enough space, but it's also an essential factor in the growth of your plants. Repotting allows the roots to receive more water and nutrients, which is crucial for a healthy plant.
Outdoor cultivation vs. indoor cultivation
There are clear differences between outdoor and indoor methods of growing cannabis. Outdoor cultivation takes advantage of natural sunlight and is usually done in gardens or fields. This method is often cheaper and allows for larger plants to be grown, but weather conditions must be taken into account and there is less control over the microclimate.
Indoor cultivation, which often takes place in specially equipped rooms or greenhouses, allows growers to fully control environmental conditions such as light, temperature and humidity. This allows the growth process to be directed in a targeted manner, but requires a higher investment in equipment and electricity costs. Indoor cultivation also makes it possible to grow plants all year round and protects against pests and weather influences.
In contrast, the greenhouse, which offers a combination of outdoor and indoor conditions, usually only requires one repotting, similar to indoor cultivation. It is also important to ensure that the pots are large enough so that the growth of the plants is not affected.
Repotting: Technique and Timing
Repotting plants is an important step in the care and cultivation process. To give plants more room for root growth and to allow for greater nutrient uptake, they are placed in larger pots. This promotes the plant's well-being and growth. It is important to treat plants carefully when repotting and ensure that the new pot is of appropriate size and has good drainage. Ideally, repotting should be done before the roots completely fill the existing pot and signs of stress appear.
Why do you repot?
Repotting cannabis is an important step in the care and cultivation process. To give plants more room for root growth and to allow for greater nutrient uptake, they are placed in larger pots. This promotes the plant's well-being and growth. It is important to treat plants carefully when repotting and ensure that the new pot is of appropriate size and has good drainage. Ideally, repotting should be done before the roots completely fill the existing pot and signs of stress appear.
When is the time for this?
There are several factors that determine the optimal time to repot cannabis plants, including the size and growth stage of the plants. The table will allow you to make a decision. For seedlings and young plants, it is advisable to repot when they reach a certain size. For example, plants that are around 10 cm tall will need a 0,5 litre pot. When they get large, a much larger pot will be needed. An 11 litre pot should be used for robust plants in the growth phase that are 25 cm tall. Before the roots completely fill the pot and show signs of stress, it is crucial to repot on time.
| For seedlings and young plants in the growth phase | For robust plants in the growth phase | start of the final pot sizes |
|---|---|---|
| 10 cm = 0,5 l | 25 cm = 11 l | 46 cm = 57 l |
| 13 – 15 cm = 1 l | 230 cm = 19 l | 61 cm = 95 l |
| 22 cm = 7,5 l | 41 cm = 38 l |
The difficulty: The ring roots
Root girdle is a common problem in cannabis plant cultivation, especially when left in pots that are too small for a long time. As the roots grow, they hit the walls of the pot and spread out in a circle along these walls. This causes the root system to be inefficient and the uptake of water and nutrients is impaired. Root girdle has the ability to affect the growth of the plant and even damage its well-being. To prevent root girdle formation, it is important to repot the plants into larger pots in time before the roots spread completely.
Having dealt with the difficulties of repotting and avoiding girdling roots, adequate soil moisture is another important aspect of your plants' growth. Watering is central to this. A balanced water regime is very important to support plant growth and prevent difficulties such as root rot or drying out. Our watering guide covers how to ensure that soil moisture is optimal for your plants.
Gentle Repotting: A Guide
A gentle repotting starts with the right time and careful preparation. It is advisable to water the cannabis plant 1 to 2 days before watering. It is necessary to fill the new pot with soil and dig a hole for the root ball. Then the plant is transplanted and gently watered.
How should you proceed:
- Preparation: If you choose a larger pot, make sure there is a good drainage layer at the bottom. Partially fill the new pot with fresh soil that matches your plants.
- Watering: The plant should be watered a few days before repotting. This makes it easier to remove the plant from the old pot and reduces stress on the roots.
- Repotting: Gently remove the plant from the existing pot. Make sure you disturb the root ball as little as possible.
- How to plant: Place the plant in the new pot and cover the sides with soil. The root crown must be at the same height as before.
- Aftercare: After repotting, the plant should be watered lightly to settle it on the soil and remove air pockets. For a few days, you should avoid direct sunlight and difficult environmental conditions.
To avoid stressing the cannabis plant as much as possible, the repotting process should be carried out gently and without haste. Now that we have examined the gentle repotting method in detail, it is time to start the next important step: preparing the new pot. A pot that has been carefully prepared serves as the basis for the healthy growth and development of your plant. We will now explain how to best prepare the new pot so that your plant has the best starting conditions in its new home.
The New Pot: Creating a Good Foundation
It is very important to create a solid foundation for root growth when preparing a new pot for repotting cannabis plants. To avoid waterlogging and root rot, an effective drainage layer at the bottom of the pot is essential. A mixture of expanded clay or gravel is a good choice for this layer. Then fill the pot with high-quality soil that meets your plants' specific needs. This will create an optimal environment for the roots to spread and feed the plant.
Repotting cannabis plants is an important step in ensuring they grow and thrive healthily. It is important to choose the right time and approach to reduce stress. It is essential that a freshly prepared pot with proper drainage and suitable soil is used. By moving your plant to larger pots in a timely manner, you will support root development and therefore health. Repotting is therefore an indispensable part of the life cycle of your cannabis plants, although it should be used with caution.
