What are good size pots for growing indoors cannabis? Full Guide 2020

Choosing a plant pot is an important but often overlooked task. They come in all shapes and sizes that are all going to effect the way your plant grows in some subtle way.

SO WHAT IS IDEAL POT SIZE FOR A CANNABIS PLANT?
It is best to keep your cannabis plants in pots varying between 1.5 – 3 gallons, 3 gallons being the norm (1 gallon is 3.8 liters). If you have a lot of room in your grow tent for cannabis then you may even want to consider 5 gallon grow pots.

For a root system to develop and thrive, they will need the following:

• Access to water: Water retention is paramount for healthy plants. Without it, your cannabis will wither and die. Although growing medium plays a big role in this matter, housing your plants in the right container can also help. Give your roots access to proper drainage to mitigate damage.
• Access to oxygen: Plant roots require oxygen to function properly. Knowing this, choose a container that facilitates enough oxygen for root development without overexposing them to the elements. Many container varieties offer increased oxygen exposure to the roots though various styles of perforation.
• Access to nutrients: Roots require optimal conditions for nutrient absorption to occur. This includes pH balance, optimal temperatures, and nutrient availability.

For this reason it is very important to choose a decent container size. Standard container size varies between 4-14 liters, depending on the strain you are growing (the bigger it is, the more room it is likely to require). You can go bigger than this if you have the room, or you have enough lighting from cannabis grow lights but it may not be necessary. Whilst having too little space will harm you plants, too much space isn’t going to have any positive effect unless your plant has the potential to fill it. What is important is ensuring the roots of your cannabis never run out of room. As a rule of thumb, it is best to choose the biggest containers you can practically fit in your grow area – one for each plant. That way you never have to worry about your cannabis becoming root bound.

To give you a better idea, the following list outlines the theoretical IDEAL amount of room for your cannabis will need, based on its age.

Note: We do not recommend working your way up through these sizes, as repotting cannabis can cause unnecessary stress on the plant. Instead, pick the size that you foresee your plants requiring in towards the end of its life cycle.

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 fabric grow 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

When you have decided on a new home for your plant, it is time to begin the transplanting process. Loosely layer in your new soil, ensuring it is not to tight and your plants root's will be able to wiggle throughout, remember if you are transporting from another pot that you must make room for the existing soil that comes along with the roots. Water the plant in its current home, this helps ensure the roots are not brittle and breakable when moved.

Place your hand on top of the plant carefully, and slowly begin turning it upside down, carefully wiggling the pot left to right. It should begin to loosen, if not use a butter knife to separate the soil from the side of the pot. With the plant in your hands you can help direct any inward roots to point outward.

Place in it's new home, pat down and even the soil, and water lightly to help bring the new and old soil together. The plant should only be planted as deep as it was before. You will be able to tell by seeing the soil line on the stem.