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How to Growing Weed in a Closet: Insider Tips for Success!

Growing weed in closet

Growing cannabis in the comfort and privacy of your own home has become increasingly popular among cannabis enthusiasts. And when it comes to convenience, cost-effectiveness, and maintaining utmost discretion, growing weed in a closet has emerged as a viable option.

Believe it or not, with the advancements in cultivation techniques, equipment, and genetics, it’s now possible to grow cannabis in a closet.

In this comprehensive guide, we will explore the ins and outs of cultivating cannabis in a closet, providing you with a step-by-step guide, the knowledge, and techniques to grow cannabis in your closet without major problems.

Can You Really Grow Weed in a Closet?

Cultivating cannabis in a confined space like a closet may elicit surprise and probably it may raise some eyebrows, but be assured, it is undoubtedly a feasible choice. The crucial factor is to employ contemporary cultivation methods and maximize the limited area.

Naturally, there are obstacles to overcome, including space limitations and odor issues. However, with careful planning, proper equipment, and the right genetic strains, you can create an optimal environment to successfully start growing weed in a closet and enjoy the fruits of your labor.

Setting Up Your Closet Grow Space

To ensure successful closet cultivation, it’s crucial to set up your grow space properly. Therefore, before providing instructions on how to grow marijuana in a closet, let’s delve into the essentials you’ll need to create an optimal environment for your cannabis plants:

Choosing the Right Space

The first step in setting up your closet grow space is selecting the right closet for your cultivation project. While it may seem like any closet will do, there are a few factors to consider that can greatly impact your plants’ success:

  • Size: Assess the available space in the closet and determine if it can accommodate your plants, equipment, and ventilation system comfortably. Keep in mind that cannabis plants require adequate room to grow and thrive.
  • Accessibility: Consider how easily you can access your plants for maintenance tasks such as watering, pruning, and inspecting. It’s important to have enough space to maneuver and reach all parts of the plants.
  • Light Leakage: Pay attention to any light leakage from the closet. Light leaks can interrupt the dark period during the flowering stage, potentially affecting the plant’s ability to produce optimal yields. Choose a closet that can be effectively sealed to prevent light leaks.
  • Privacy: Growing cannabis is a personal endeavor, and maintaining privacy is crucial. Opt for a closet that offers privacy and minimizes the chances of your cultivation activities being discovered.

Essential Equipment and Supplies

Once you’ve selected the ideal closet for your grow space, it’s time to gather the essential equipment and supplies necessary for successful cultivation. Here’s a breakdown of what you’ll need:

  1. Containers: Choose suitable containers for your cannabis plants, such as fabric pots or smart pots. These containers provide proper drainage and allow oxygen to reach the roots, promoting healthy growth.
  2. Grow Lights: Investing in high-quality grow lights is crucial, as they will serve as the primary source of light for your plants. LED, CFL, and HID lights are popular options for closet cultivation. Consider the specific light requirements of your chosen cannabis strains when selecting the appropriate lighting system.
  3. Growing Media: Select a suitable growing medium for your plants, such as soil or soilless mixes like coco coir or peat moss. Each medium has its advantages, so choose the one that aligns with your cultivation goals and personal preferences.
  4. Nutrients: Just like any other living organism, cannabis plants require essential nutrients for healthy growth. Organic or synthetic fertilizers can provide the necessary elements for optimal plant development. Consider a balanced nutrient regimen and ensure you understand the specific nutrient requirements during each growth stage.
  5. Ventilation System: Proper airflow is essential for preventing issues such as mold, mildew, and stagnant air pockets. Install a ventilation system that includes an intake fan to bring fresh air into the closet and an exhaust fan to remove stale air and excess humidity.
  6. Carbon Filters: Cannabis plants emit distinct aromas, particularly during the flowering stage. To maintain discretion, utilize carbon filters in your ventilation system to neutralize and minimize odors.

Ultimate Guide to Growing Weed in a Closet

Now that your closet growth space is ready, let’s dive into the step-by-step process of cultivating cannabis in a closet. Follow these guidelines to ensure a successful and rewarding cultivation journey.

Selecting the Right Cannabis Strains

Choosing the appropriate cannabis strains is crucial for successful closet cultivation. Look for compact, low-odor strains with shorter flowering times, as they are better suited for the limited space of a closet. Consider strains that are known for their manageable sizes and appealing aroma profiles.

Germination and Seedling Stage

Start by germinating your cannabis seeds using tried-and-true methods like the paper towel method or pre-soaking. Once the seeds have sprouted, transfer them to small containers with a well-draining growing medium. Provide a warm and humid environment to encourage healthy seedling development.

Vegetative Growth

During the vegetative stage, focus on providing your plants with ample light, balanced nutrients, and suitable environmental conditions. Adjust the lighting schedule to 18-24 hours of light per day and maintain a temperature range of 70-85°F (21-29°C) and humidity around 40-60%.

Training Techniques

To optimize your closet space and maximize yields, employ various training techniques like low-stress training (LST), high-stress training (HST), or the screen of green (ScrOG) method. These techniques help control plant height, encourage lateral growth, and promote even light distribution.

Flowering Stage

When your plants enter the flowering stage, adjust the lighting schedule to 12 hours of light and 12 hours of uninterrupted darkness per day. Monitor and maintain appropriate temperature (65-80°F or 18-27°C) and humidity levels (40-50%). Keep a close eye on your plants, inspecting them regularly for signs of nutrient deficiencies, pests, or diseases.

Harvesting and Drying

Harvest your plants when the trichomes have reached the desired level of maturity. Use a magnifying tool to examine the trichomes’ color and ensure optimal potency. After harvesting, hang the trimmed buds in a dark and well-ventilated space to dry slowly. Monitor humidity levels during the drying process to prevent mold or mildew.

The Best Cannabis Seeds for Closet Cultivation

Selecting the right cannabis seeds is paramount when growing in a closet. Compact strains with shorter flowering times and low odor are ideal, here are some popular strains that have proven to thrive in limited spaces:

Super Lemon Haze

Is considered great for growing in a closet because is its manageable size. Super Lemon Haze tends to have a moderate height, making it easier to control and maintain within the limited space of a closet. Additionally, this strain has a relatively short flowering time, usually around 9 to 10 weeks, allowing for a quicker harvest compared to some other strains.

Girl Scout Cookies (GSC)

This Indica-dominant hybrid has gained immense popularity for its unique blend of effects and enticing flavors. While GSC plants can grow quite tall under optimal conditions, they also respond well to training techniques like low-stress training (LST) and pruning, allowing you to manage their height and shape within a closet.

White Widow

We all know this strain, is a hybrid that has gained a reputation for its potency and resilience. This strain is well-regarded for its adaptability, making it a favorable choice for growing in small spaces like a closet.

White Widow plants tend to stay compact and bushy, which can be advantageous in a confined area. Its dense, resinous buds and earthy flavor profile are highly regarded among cannabis enthusiasts.

Shedding Light on the Best Lighting Options

Currently, no other lighting option compares to the efficiency and effectiveness of LEDs. Marijuana plants require ample light, and they particularly thrive under UVB light, which can be emitted by LEDs.

UVB light acts as a form of stress for the marijuana plant, prompting it to produce higher levels of trichomes as a protective mechanism for the buds. Increased trichome production leads to buds of superior quality.

Using LEDs also eliminates the concern of heat generation, ensuring that temperature fluctuations are not a worry within your grow closet. In addition, it will also help your pocket, since LED grow lights consume less power compared to fluorescent bulbs.

In any case, remember to position your lights at an appropriate distance from the plants to avoid light burn or heat stress, and adjust the lighting schedule based on the growth stage.

Pros and Cons of Growing Weed in a Closet

Growing weed in closets offers a range of benefits and challenges that every cannabis cultivator should be aware of. While it provides a convenient and discreet option for home cultivation, there are also some limitations to consider. Let’s take a look!


  1. Privacy: By utilizing a confined space, you can keep your cultivation activities discreet and out of sight from prying eyes. This is particularly important in areas where cannabis cultivation may be subject to legal restrictions or social stigma.
  2. Control over Environmental Factors: You have the ability to regulate environmental factors such as temperature, humidity, and lighting, creating an optimal micro-environment for your plants to thrive.
  3. Cost-Effectiveness: The space requirements are minimal, reducing the need for expensive equipment and large quantities of growing media. Additionally, closet cultivation consumes less electricity and requires smaller ventilation systems, resulting in potential long-term savings.


  1. Limited Space: The confined space of a closet limits the number of plants you can grow and the potential yields you can achieve. The available area may restrict the size and overall growth potential of your cannabis plants.
  2. Odor Management: Controlling and minimizing these odors can be challenging in a closet environment. Ensuring proper ventilation, using carbon filters, and employing odor-neutralizing techniques are essential to prevent unwanted odors.
  3. Potential Heat Buildup: Maintaining an optimal temperature range is crucial for healthy plant growth. In a closet, it is important to have efficient cooling and ventilation systems in place to prevent heat stress.

How Much Does It Cost to Grow Weed in a Closet?

While the expenses can vary depending on factors such as location, equipment choices, and personal preferences, we can provide a general estimation of the costs associated with growing weed in a closet. Keep in mind that these figures are approximate and can fluctuate based on individual circumstances.

Equipment Costs

  • Grow Lights: LED grow lights, known for their energy efficiency and customizable spectrum, can range from $100 to $500 or more, depending on the wattage and brand. CFL lights, which are a more budget-friendly option, can cost between $50 and $200.
  • Growing Containers: Fabric pots or smart pots, ideal for promoting proper drainage and root oxygenation, are relatively affordable, ranging from $5 to $15 each.
  • Ventilation System: A ventilation system, including an exhaust fan, carbon filter, ducting, and inline fan, can cost approximately $150 to $300, depending on the size of your closet and the quality of the equipment.
  • Nutrients: The cost of nutrients will depend on whether you choose organic or synthetic options. A basic set of nutrients for a single grow cycle can range from $50 to $100.
  • Growing Medium: The choice of growing medium, such as soil or soilless mixes, will influence costs. Expect to spend around $20 to $50 for a suitable amount of growing medium.
  • pH and TDS Meters: These tools are essential for monitoring and adjusting nutrient levels. Prices for pH and TDS meters can range from $20 to $100, depending on the brand and quality.


The cost of cannabis seeds can vary significantly depending on the strain, genetics, and breeders. Prices typically range from $10 to $50 per seed. Keep in mind that some breeders offer discounts for purchasing in bulk or buying multiple packs.


Growing cannabis indoors requires electricity to power the lights, ventilation system, and other equipment. The actual cost will depend on your location, local utility rates, and the energy efficiency of your setup.

On average, you can expect an increase in your electricity bill ranging from $50 to $150 per month, depending on the size of your closet and the intensity of your lighting.

Miscellaneous Expenses

There are a few additional expenses to consider when estimating the total cost of growing weed in a closet:

  • Grow Tent or Enclosure: If you choose to use a grow tent or build a custom enclosure within your closet, this can add an additional cost ranging from $100 to $300 or more, depending on the size and quality.
  • Training and Support Materials: Investing in educational resources, such as books or online courses on cannabis cultivation, can provide valuable knowledge but may come at an extra cost.
  • Maintenance and Upkeep: Over time, you may need to replace or upgrade certain equipment, which should be factored into your budget.

Total Cost Estimate

Considering the aforementioned factors, a rough estimate of the total cost to set up and maintain a closet grow space for cannabis cultivation can range from $500 to $2,000 or more, depending on your equipment choices and personal preferences.

Odor Control and Ventilation

Effective odor control is crucial when growing cannabis in a closet, as the strong aromas can attract unwanted attention. Here are some methods to help you manage odor and maintain a discreet operation:

  1. Carbon Filters: Install carbon filters in your ventilation system to eliminate odor molecules from the air before it is expelled outside the grow space.
  2. Air Circulation: Proper ventilation and airflow are essential for maintaining a healthy environment and minimizing odors. Use fans strategically to circulate air within the grow space.
  3. Odor Neutralizers: Consider using odor-neutralizing agents such as activated charcoal or essential oil diffusers to mask any lingering smells.

Regularly clean your grow space, maintain good hygiene practices, and ensure your ventilation system is functioning optimally to mitigate odor-related issues.


Congratulations! You are now equipped with the knowledge and techniques necessary to start growing weed in your closet. Remember to take each step carefully, monitor your plants diligently, and adapt as necessary.

With dedication and attention to detail, you can achieve impressive results and start enjoying the benefits of having a huge supply of high-quality cannabis within the confines of your own closet!

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