How to plant Cannabis seeds indoors

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The Cannabis business is growing very fast from the last few years due to its legalization in some states. People are now growing cannabis at their home as a fun project or to get hands-on it. You can grow cannabis indoors and outdoors. Due to the adverse weather or lack of space outdoors, many people grow marijuana indoors. You can grow cannabis in any area like a garage, or basement. It is not difficult to grow indoors, but you need the right information before getting started. It is a fast-growing plant, so make sure that the area you decide for growing is big enough for it to spread. Start initially with a plant or two as a learning phase, and then you can increase the numbers gradually.

Here are the steps you must follow to grow cannabis at home.

1. Seed


Choose good quality seeds that will yield edible cannabis plants. The seed must have a hard tiger shaped dark brown outer shell shaped like a raindrop. Avoid mature seeds, the ones that are green, pale and soft. Once you choose the seeds, you need to prepare them for germination. It takes approximately two to seven days for a healthy seed to germinate, but depending on the seed quality, moisture, and temperature, this time might vary. The chances of getting healthy female marijuana plants are 3 out of 10. Others grow as male plants. The germination of the seed can happen through the soaking method in soil, using the propagation kits, the paper towel method, or using peat briquette. So, once the germination completes, remove the not so much developed male sprouts and give all your attention to the female cannabis plants.

2. Transplanting


Once the germination of seeds happens, it is time to transfer them into bigger pots/containers. This process of shifting from a smaller area to your area of cultivation is transplanting. You must be very careful while doing this step. While taking out the plant, take it out slowly, keeping it out along with the soil and roots intact. Once you fill your pot with soil, transfer these seedlings carefully into it by digging a hole using a pencil. Transplanting of plants causes some stress and damage to the roots of the plant, so give it some time to adjust to the new atmosphere. It is essential to do this step at night to provide the sapling enough time to de-stress before it starts photosynthesizing.

3. Growing Medium


You can grow cannabis in fabric pots, which are better than solid plastic containers. Fabric pots let the oxygen reach the roots of the plant and helps in natural water drainage. You can choose the kind of medium you want to use to plant like soil, soilless mix, hydroponics, aeroponics, and aquaponics. Fill the pot using an organic composted soil for the best results. The minerals present in this soil will help cannabis in the initial growth phase. Other factors like pH level, texture, and nutrients in the soil are essential things to consider while choosing a growing medium. You should also mix perlite along with the soil for better drainage. The soil should be loose and airy and be able to drain excess water.

3. Soil Nutrients and Root pH

Soil nutrients: Nutrients are essential for plants to help the plants grow beautifully and produce the most excellent results. There are three types of nutrients required for cannabis plants: nitrogen, phosphorus, and potassium. Nitrogen helps in the growth of its stem and leaf. Use the right amount of nitrogen during the vegetation period so that it's leaves don't turn yellow and grow nicely. Phosphorous helps in the respiration and photosynthesis process. During the flowering stage, use less nitrogen and more of phosphorous. Potassium helps in the absorption of nutrients and water, the transfer of sugar, and the fast growth of the plant.

Root pH:

The pH level of cannabis plants plays a vital role in the growth of the plant. The best range of pH level lies between 6.7 to 6.2 for the viability of the plant. Feeding the plant with dense fertilizers will cause the death of the plants. Therefore, test the pH level of water to avoid nutrient problems. Composted soil has the right pH level for growing marijuana. Sometimes the right nutrients are also not enough for the growth of cannabis; the correct pH is crucial for it to absorb the nutrients.

4. Ventilation System

Airflow is an essential factor for the remarkable growth of marijuana seeds to plants. Install a sound quality ventilation system that will ensure fresh airflow in the growing space throughout their growing cycle. A gentle breeze is what is required to repel the pests, spider mites, mold, and protect them from the bud rot and white powdery mildew. A light breeze around the plants will also help in managing the humidity, moisture, and heat levels. It will help them grow strong stem and branches. Do not place the ventilation system directly towards them as it can stress your plants. A gentle airflow through the canopy is enough for steady growth.

5. Water


Just like you water other plants, cannabis plants also need proper watering. If the plants are growing in coco coir or compost, then hand water them. Put your finger into the soil till the first knuckle, if it feels dry and soil doesn't stick to your finger, then it is time to water. Don't wait for complete dry out when growing them in coco coir. Water them every 1-2 days.

6. Right Lighting

Choose the right lighting system keeping the color and temperature factors in mind for growing marijuana plants indoors. The maximum wattage of lights for growing cannabis Sativa is 1000W. The most straightforward choice for indoor lighting is an LED grow light. It is efficient, user-friendly, and very economical. Install lights in a way that they give your plants maximum light coverage. Other kinds of grow lights are high pressure grow lights and metal halides that are powerful and easy to set up.

7. Correct the Light leaks

Cannabis plants are sensitive to light during their dark cycle. It can disturb and stress the plants if rays enter during the wrong time. You must check for light leaks in the cannabis cultivation area before even finalizing the space. Light leaks can hamper the results and growth of the plant. Test the light leak by checking for small light rays entering the room from outside. You will find them on the sides of windows and doors. Use a blackout tape to cover up these cracks.


The above are the steps that you must consider while growing cannabis indoors. Be patient while growing them. If you are a first-time grower, then it might take a few trials. Also, it is wise to install an air filter that will filter out the smell of marijuana, keeping your project a secret. You can also buy weed online and check out different types of cannabis.

Author’s Bio

Jessica is a cannabis and health industry consultant who frequently writes about the latest trends in the industry. She has been writing for a long time now. Through her writing, she hopes to influence as many people as possible to help maintain better health and lifestyle. She is reachable at

Publicado en: Growing

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