The growing wave of legalization in the United States and Canada has paved the way for citizens to grow cannabis. Eligible growers can cultivate this plant in their homes, irrespective of their space size. Thus, anyone can grow this plant inside or outside their homes. 

But how do you go about it after buying the best cannabis seeds for growth? Our discussion shares actionable tips for growing cannabis in any limited space in and outside the city. Keep reading to learn how to get the most out of your little cannabis-growing room. 

What Does Your Small Space Need?

Before planting your feminized cannabis seeds, determine what your little space needs to grow your cannabis. Understanding that micro-growing is about producing the best bud with your desired aroma, flavor, and potency in confined spaces is vital. You can do it in small DIY tents, cupboards, bar fridges, or ready-made stealth grow boxes. 

The minimum space for growing cannabis is 35 × 35 × 75cm. Your chosen room for micro-growing should meet the following requirements: 

Adequate Growth Space 

Your grow space must be big enough to accommodate your plant size and numbers. Remember, the bigger your plants grow, the more yields they will give you. You should focus more on the height than width to keep the lights off your cannabis. 


Your growing space must be sterilized. Ensure the spaces are clean, and drain your plants, so they don’t soak in water. 


Your cannabis needs fresh air to grow. Thus, your grow room needs a constant air exchange to keep your plants healthy and vibrant. Based on your location, you might need an AC unit or heater to regulate the growing climate. 

Tips and Tricks for Growing

How do you move on after you buy cannabis seeds for micro-growing? Here are actionable tips to help you optimize your growing space. 

Use the Correct Soil Amount 

Most home micro-growing uses soil because soilless or hydro systems in confined spaces can be challenging. Using less soil prevents your cannabis from outgrowing its small room. Remember, your plants’ root system is vital to its growth, and size significantly influences how tall the plants grow.

Know Your Strains

You must know your cannabis strain to optimize your small growing space. The three available strains—sativas, indicas, and hybrids—grow differently. Sativas are thin and have a more open bud structure, while indicas are shorter and stocky, with denser buds. Hybrids might have traits from both.

Indicas are easy to maintain in a smaller space and yield because of their short and stocky nature. Sativas may behave the same, although you will spend more time and attention pruning them. Additionally, sativas’ height increases by 200-300% during flowering. Inversely, indicas increase only by 50-100%, making them ideal for micro-growing.

Keep Roots Healthy

You should also mind your plants’ roots when you buy cannabis seeds for micro-cultivation. The roots absorb water and minerals from the growing medium and send them to the rest of the plant. Therefore, choose a high-quality grow medium for your micro growing to get the best results. Use complete or super soils because they have most essential nutrients, allowing plants to store water efficiently for longer periods between watering intervals. 

Don’t forget to check if your plants’ roots are exposed. If you notice they are coming out of the drainage holes at the pot’s bottom, transplant them into a bigger one. Stunted plants that usually appear to droop even after watering them can also signify they their roots are bound and need more soil. 

Master Climate Control 

Pay particular attention to climate control to succeed in your micro-growing. Ensure to maintain a healthy temperature of 70-75 degrees. The suitable relative humidity must range between 40 and 75%. 

Utilizing LED light reduces the overall temperature and the need to cool down your grow. However, your cannabis will still need a fan to supply sufficient fresh air to your plants. Remember, fresh air is necessary for high yields because your cannabis needs CO2 for photosynthesis. Fresh air also boosts plant growth and checks temperature and humidity levels. 

Keep Grow Lights Closest 

Place your grow lights closest to the plants but without stressing them. Why? Because strong light helps keep plants shorter. 

Top Your Plants 

Cut off your plants’ tips when they are a few weeks old. This technique makes plants grow bushy and spread out instead of growing taller. 

Train Your Cannabis 

Plant training lets you keep them in the exact height and shape you want them to have. This method can help even if they are already big. Techniques like LST (low-stress training) and super-cropping (extreme bending) are useful for changing your plants’ overall shape or reduce their height.

Initiate Flowering Early Enough 

Initiating early flowering is also beneficial if you are growing photoperiod or regular strains. You can do it when they are half their desired size. However, this method isn’t suitable for auto-flowering strains. Your cannabis’s size will reduce after receiving a 12/12 light schedule. Otherwise, plant height can quickly get out of hand. 

Harvest on Time

Getting a bumper harvest is every grower’s joy and goal of buying cannabis seeds for sale. This stage is the most exciting, although its timing is critical. Premature harvesting lowers potency and yields. Conversely, late harvesting makes buds lose flavor/aroma profiles because of UV degeneration from sunlight exposure. 

So, pay special attention to your plants during their flowering stage. Check out for any signs of amber hairs reddening or browning calyxes. These signs show that your plants are ready for harvesting.

Understand and Follow Local Laws

Since no federal laws exist to regulate cannabis growing and consumption, paying special attention to local laws is vital. Colorado, which took a frontline lead in cannabis legalization, has laws regulating how to grow cannabis at home for personal use. 

These laws allow any Colorado adult aged 21 years and over to grow three plants for personal use at a time. However, different counties and municipalities may freely enact their own stricter laws. An excellent example is Denver, which restricts a home grow to 12 plants, even if a home has more than four adults wishing to grow their cannabis. 

Our experts at recommend checking out your local state and municipal regulations before proceeding to avoid unnecessary legal problems.  

Parting Shot

You are now abreast of what you need to know about growing cannabis in small spaces and how to do it. Go ahead and use this information to optimize your limited grow space. 

Denys Svirepchuk is a full-time blog writer at AskGrowers. He focuses his reviews and research on finding the best cannabis strains and promotes responsible weed use among consumers. Denys also specializes in marijuana-related product reviews and works with responsible, ethical brands in the US market.