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Growing weed in a closet is a great way of getting herb in herbless life. For as long as you consider some pointers and keep them in mind, you can grow cannabis indoors in the easiest way. Learning and understanding each step on how to grow a marijuana plant in your closet is important. 

“Closet grow” refers to a tiny space in your wardrobe, closet, or cupboard. This small space needs to slight to major changes to add the essential accessories in growing cannabis using this method. 

However, a closet does not naturally have the ideal environment a marijuana plant needs for its growth. Thus, the initial steps in setting up a closet for indoor cannabis growing involves some crucial factors. 

You need to consider the ventilation, temperature, light, and the smell that your marijuana plant will emit. If growing in a closet is your only choice, the final results will be worth it. 

Equipment and Tools Needed in Growing Weed in Your Closet

The following materials should be available:

  • Marijuana clones or seeds
  • A closet, cupboard, or any vacant space
  • A timer for the lights
  • Containers and a tray
  • Grow light and fixtures or hangers
  • Nutrients
  • Substrate (it can be coco coir, Rockwool, or soil)
  • A carbon filter or any other material that can kill the smell of marijuana

However, the materials outlined below are optional:

  • Hygrothermometer – a device used for checking the humidity and temperature
  • A reagent test kit or pH pen – necessary for determining your water supply’s pH level
  • Heat-resistant plastic or white paint – coat the interior of your closet for increased reflectivity
  • A net or canes – designed for training or spacing out the branches

Getting Started – Steps on How to Grow a Marijuana Plant in Your Closet

Once all those supplies and materials are ready, you can start taking the following steps:

  1. Declutter and clean the closet first. Make sure it’s free from dirt, dust. Remove carefully all traces of mold. 
  2. Coat the interior walls using a white cover or paint with sturdy white plastic.
  3. Get the light and hang it inside your closet.
  4. Organize the containers within the space. 
  5. Set up the ventilation fans together with the carbon filter. Don’t forget to test them.
  6. Start growing your plants and have fun!

With these steps, growing marijuana in a closet seems to be easy and simple. On the contrary, bad things can go along the way. To avoid those major pitfalls related to closet growing, here are the things you must never forget:

how-to-grow-weed-in-your-closet

Choice of Nutrient Delivery and Medium

A 4-pot auto pot system or anything similar with the 5- to 10-gallon tank will be suitable for growing cannabis in a closet. If you are growing marijuana in a bedroom, you may want to avoid scattering the soil all over. So, you can opt to a less messy grow medium this time. Your best choices are: 

  • Perlite
  • Coco coir
  • Rockwool
  • Clay pebbles

Your choice of nutrients depends on your preference for water delivery. If you choose coco coir for the substrate, then you must use the specifically formulated nutrients for it. 

If you want to use organic nutrients, your substrate must not be a hydro system. Organic nutrients are more difficult to use in most hydro systems. If you’re on a tight budget, you can also make your ebb and flow or flood-and-drain system for some cash.

Choice of Lighting

In a small space, a 1000W HPS may not be necessary. A 400W HPS is much better. Cool lighting like LED or CFL is also a good choice. LED is always an excellent option, though they’re still expensive to buy a notable brand. 

You can also build a customizable LED grow light to save money. That would be great if you are tech-savvy. A programmable LED grow light allows you to control the spectrum as well as the intensity to ensure your plants need across the grow cycle. 

Aroma and Airflow

Good airflow is vital in any grow, especially in a small space like a closet in which the air available can get used up too fast. You can manage airflow in many ways. Keep the closet properly sealed to prevent odors from leaking out. You should control and manage the airflow inside and outside of the closet. At the same time, you need to filter out the odors lingering in the air. 

A tiny vent fan that is not larger than 4 inches in diameter is enough for controlling the air inside and outside of the closet. Set it up out of the closet and allow a short length of the vent’s duct to get into the closet. In this case, you need to change the door of the closet or cut a part of it using a circular saw. 

A hole or two with a diameter measuring 2 to 3 inches will be good enough to ensure the air will penetrate the closet’s interior. Make sure the air reaches the other side of your closet to where it should go out. This will help maintain good circulation inside the closet. Also, you can add 1 or 2 tiny circular fans to move the air all over the closet’s interior.

Your Plant’s Height

When growing weed in a closet, space is an issue in all directions. Usually, you might have less than 6 feet of vertical space, which includes the space for hanging the light. Hence, you need to maintain the maximum height of your plant to prevent excessive stretching.

Controlling Stretch

Likewise, you can control your plant’s ability to stretch through manipulating the phosphorus levels available to the plant. When the levels go down, shoot growth reduces in turn. It is a technique which you must use with care. Remember, phosphorus is a vital macronutrient that is responsible for different characteristics of keeping your cannabis plants healthy and happy. 

On the other hand, when you inhibit phosphorus carefully in early flower, you will attain a reduction in the stretch with minimal or even no adverse effects. A minor case of phosphorus deficiency usually makes the plants look healthier and greener. 

The other way of controlling stretch is to maintain both daytime and nighttime temperature during the early flowering period. When the nighttime temperature is similar to daytime temperature, the stretch will be reduced. You must avoid creating a morning temperature dip, as you must create a positive day-and-night temperature difference for increased terpene and cannabinoid production. 

Light Spectrum

When the red light is much higher compared to far-red, your plants would have shorter internodes. Increasing the amount of far-red light will encourage the internodes to grow longer, so your plants will have tall and spindly plants with weak stems. 

Take note that the amount of existing far-red light does not rely on how much far-red light your grow light can produce. Although, various lights will provide varying ratios. 

It may also depend on how simple it is for light to get into the canopy. The leaves of your plants absorb and block the red light while allowing the far-red light to pass through. 

Thus, when your plants are dense and thick with jam-packed leaves and the limited gap between them, the bottom parts of your plants will receive more of the far-red light. It causes the shade evasion response, forcing your plants to stretch.

Also, you can modify the ratio throughout the flowering phase. So, at the beginning of the phase, you may fine-tune the light spectrum to reduce stretch. In the late flowering period, you can then manipulate it to boost the production of terpenes and resin as well as to maximize the production of anthocyanin pigments, turning your plants into purple. 

Conclusion

Growing cannabis in a closet can be tricky, especially if you’re doing it for the first time. However, success is not impossible to achieve once you know the right steps to take on how to grow a marijuana plant in your closet. Keep in mind what you’ve learned here. Enjoy!

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