People start growing and cultivating marijuana for a variety of different reasons. Perhaps you are underwhelmed with the quality of the weed you purchase or you just want to bring in some extra cash.

Some people grow purely for medicinal reasons and others grow for social reasons. Without a prescription, you’re likely going to be stuck with low-quality, overpriced weed—a problem that leads a lot of people to grow their own.

Today you’ll learn what to expect when you’re growing your own crop.

Growing marijuana isn’t difficult as long as you put enough time and effort into the hobby. Spending just a few hours every week can produce some fantastic results. If you’re growing just for yourself, then you don’t really require huge yields. A starter kit costs as little as $80 and can give you a nice start. Of course, growing marijuana always comes with some risks that vary depending on your location. 

New marijuana growers frequently ask things like, “What kinds of yields can I anticipate?” or “How much good marijuana can I get from a single plant?” Of course, every situation is different and many variables determine how much usable marijuana you will end up with.

The Costs And Revenues Of Growing Marijuana
Image by greenrushdaily.com

Cost Of Growing Marijuana Outdoors

If you’re growing purely for private use, then marijuana cultivation doesn’t need to be that pricy. Growing outdoors is easiest because all the things needed to grow marijuana are essentially free. The sun rises every day, the plants get water from rain, and the soil is full of nutrients. In reality, to grow outdoors, all you have to do is buy some marijuana seeds.

Of course, buying pots and growing your plants in fertilized, nutrient-rich soil could improve your results exponentially. Here’s a little example of some basic requirements:

Outdoor (Amazon) Total: $55
3 x miracle grow soil $14.91
3 x 15-gallon container $9
3 x high quality seeds $30

Reward Of Growing Marijuana Outdoors

Growing Outdoor
Image by balancemmc.com

For some, growing marijuana might just be about having your own home-grown weed. But, you really have to tend to your plants and make sure they’re happy, so to speak. Everyone can grow cannabis. If you can’t grow indoors, then maybe try your garden or a terrace on the rooftop. Forests, parks, cornfields, or a friend’s garden are also applicable locations.

There’s a whole section on creative outdoor growing in my 70 page guide, the Grow Bible.

Download the free PDF

Simply placing your seeds on some dirt and letting them sprout without proper nutrients or care will get you maybe a few ounces of marijuana. With perfect conditions outdoors, you can yield up to around 18 ounces (500 grams) for each plant. It’s important to have at least two meters of space between the plants. The plants also need enough water and marijuana fertilizer without contracting any diseases or being attacked by pests. Containers (if you use them) should be the 50-liter (15-gallon) variety. Germinating the plants early in the season allows them to grow much larger. It may be in your best interest to germinate the seeds indoors so that you have total control over the temperature and humidity.

Cost Of Growing Marijuana Indoors

Growing indoors can also be inexpensive. CFL lights can provide you with an adequate yield without any spikes in your electric bill. A grow room with only a few plants doesn’t require a fan and/or carbon filter to reduce the smell. All you really need are seeds, soil, pots, CFL lights, and a small fan, which should only cost around $80 (or less if you’re good with your hands). Professional systems that produce higher yields generally only cost a few hundred dollars. You can buy a plug and play grow box from our friends at GrowersHouse or build a small grow room yourself.

Below are some shopping list examples:

Indoor Basic (Amazon)   Total: $80
1, 125-watt CFL light $30
3, 2 size gallon container $3
1 miracle grow soil $4.97
1 fan $12
3 x high quality seeds $30
Indoor Pro (A fertile World) Total: $350
1, 600-watt HPS bulb $49
1, 600-watt ballast $51
1, 600-watt reflector $34.95
1, 500 m3 exhaust fan $135
1, 500m3 carbon filter $60
1 fan controller $50
1 time switch $6.95
10, 2 gallon pots $10
3 miracle grow soil $14.91
10 x high quality seeds $80

Rewards Of Growing Marijuana Indoors

Growing Indoors
Image by growweedeasy.com

Good lights are one of the most important factors when growing marijuana indoors. Veteran growers can achieve yields of around 1 gram (0.035 ounces) per watt of light. For example, a 400-watt HPS lamp can produce around 400 grams or 14 ounces of good marijuana. A grow room containing 1200 watts of light will translate to 1.2 kilograms or 42 ounces of good marijuana. The correct equipment, nutrient quantity, air quality, space between plants, and other important factors all contribute to the success of any indoor garden. For beginners, the yields will probably look like the following:

An average of around 1.5 to 2.0 oz  (3.5 oz for advanced growers) with 200-watt CFL lamps in a grow cabinet that measures 3.5 x 1.5 x 6.5 ft.

An average of around 3.0 to 5.0 oz  (9.0 oz for advanced growers) with a 250-watt HPS lamp in a grow cabinet that measures 3.5 x 1.5 x 6.5 ft.

An average of around 4.5 to 9.0 oz (14 oz for advanced growers) with a 400-watt HPS lamp in a grow room that measures 3.5 x 3.5 x 7 ft.

An average of around 5.0 to 10 oz (21 for advanced growers) with a 600-watt HPS lamp in a grow room that measures 4 x 4 x 8 ft.

An average of around 9.0 to 18 oz (36 for advanced growers) with a 1000-watt HPS lamp in a grow room that measures 5 x 5 x 8 ft.

If you want to start growing, check out my free grow guide for more on selecting a grow site and getting the right equipment.

Want to start right away? Grab some high-quality seeds at my seed bank!

We ship them to the U.S, Australia and many other countries. Delivery and sprouting guaranteed.

Happy growing!


The founder of I Love Growing Marijuana, Robert Bergman, is a marijuana growing expert that enjoys sharing his knowledge with the world. He combines years of experience, ranging from small-scale grows to massive operations, with a passion for growing. His articles include tutorials on growing... [read more]


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  1. By The Costs And Revenues Of Growing Marijuana |

    ,06 Mar 2014
    […] Source: ILoveGrowingMarijuana.Com […]
  2. By Ron Martin

    ,17 Jul 2018
    I went to prison for growing marijuana and I am glad that when the bill passes in Wisconsin i will get my fellony expunged. Ron Martin
    1. By Ansel

      ,13 Oct 2018
      Let’s hope it’s soon brother!
  3. By linda

    ,28 Feb 2019
    As a intro to growing, I want to learn more
  4. By Gil

    ,27 May 2019
    Six plants will be excessive to a single individual like me, can I sell my excess? and how?
    1. By Karl

      ,25 Oct 2019
      Drug dealer the illegal way in some states unless you live in legal state that allows and open your own dispensary happy smoking! :)
  5. By Alex

    ,18 Sep 2019
    I have a question about tricombes on my plant can someone help?
    1. By Stacy ILGM

      ,19 Sep 2019
      Hey Alex, How can we help you? Stacy ILGM
  6. By Kimberly

    ,14 Dec 2019
    We are looking for land and thinking about nevada...how do you know which counties will allow a small commercial grow operation?
  7. By CORBY

    ,24 Mar 2020
    thks mate.. a u send some top class to me in the U.K..for personal use ..obviously 😆😆

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