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Top Ten Rookie Mistakes To Avoid When Growing Marijuana


marijuana garden plants growing cannabisBeginners have a long history of messing things up. There’s a learning curve to just about every activity, and growing marijuana is no different. People who have been growing weed for 20 years are naturally going to be a lot better at it than those who have just decided to start. But, most newbies might be dissuaded from trying it because they fear humiliation or failure. Just remember the wise words of Wayne Gretzky: “You miss 100% of the shots you don’t take.” Gretzky, however, had very little to say about growing marijuana, so we’ve compiled this list of common mistakes that novice growers should avoid. Here is a list of the top ten rookie mistakes to avoid when growing marijuana.

1. Don’t talk to anyone about it. We’ve said it before and we’ll say it again: talking about growing marijuana is a no go. Anyone, even a good friend, could be a potential snitch. Keep it to yourself.

2. Mistakes To Avoid When Growing Marijuana: Window growing won’t cut it most of the time. Despite the fact that the best source of light for any plant is the sun, growing them indoors and using the window as your only light source is a bad way to go. Marijuana plants need as much light as you can give them. While it might be cheaper to just try to use the sun, it won’t be effective. Buy lights if you’re growing indoors.


3. Mistakes To Avoid When Growing Marijuana: Be prepared. Growing marijuana comes with a lot of vagaries that can leave you feeling overwhelmed. There are also plenty of things that you should just be prepared for. The plants need water, nutrients, light, and CO2 (not exactly in that order). But, plants can also be hit with a bug infestation, lack of nutrient quality, and inadequate amounts of CO2. Make sure you have a contingency plan ready in the event that the plants start to exhibit negative signs.

4. Mistakes To Avoid When Growing Marijuana:  Use the right fertilizer. Many beginners might just grab any old fertilizer at the garden store. While the plants will grow, they won’t thrive like you want them to. Most fertilizers have an NPK ratio conveniently displayed on the bag or other packaging. This isn’t just another irrelevant mathematical term, though. It describes the concentration of nitrogen (N), phosphorus (P), and potassium (K) in relation to one another. For every growth period (excluding flowering), you’ll want to use a fertilizer that is higher in nitrogen than anything else. During flowering, the fertilizer should have more phosphorous.

5. Mistakes To Avoid When Growing Marijuana: Just because the soil is natural doesn’t mean it will work. Many new marijuana growers automatically think that any outdoor soil will provide ample nutrients for their plants. In reality, that soil could be nothing more than glorified dirt. It could also be too acidic or too alkaline and won’t even help germinate the seeds properly. When growing outdoors, always infuse the soil with some fertilizer or other potting mix. Also, make sure to test the pH balance to ensure that it’s as close to the middle (7.0) as possible.

6. Mistakes To Avoid When Growing Marijuana: Be active. As you might have already guessed, growing marijuana is not a passive expenditure of your time. These plants need to be cared for almost like they are your children (however ridiculous that might sound). They have remarkably short lifespans from germination to harvest, but you can’t just plant them and hope for the best. Trim them, prune them, feed them, water them, pamper them, and make sure they’re getting enough light, CO2, and ventilation.

7. Mistakes To Avoid When Growing Marijuana: Don’t let the plants get rootbound. One thing that many beginners might not know is that marijuana roots grow incredibly fast. When they are in a container, the roots generally line the walls of that container and reach to the bottom. If the container is too small, they can get rootbound. They will also die. Make sure you (carefully) transplant the plants from smaller containers into larger ones after they’ve exhibited some accelerated growth (from seedling to vegetative state).

8. Mistakes To Avoid When Growing Marijuana: Don’t get crazy with pruning. You may have heard that pruning a plant increases growth. You may have also heard that more pruning correlated to further growth. While that can be true, there’s no need to prune down an entire marijuana plant. You’ll just end up weakening it and potentially killing it if you go too far.

9. Mistakes To Avoid When Growing Marijuana: Don’t panic. Most of the problems that occur with plants are the result of easily reversible mistakes. For instance, if some of the leaves start to turn yellow and the plant starts to wilt, it could just be lacking in one particular nutrient. Some leaves on the plant will also just die either because of a lack of light or because of natural processes. In general, it’s not indicative of a greater problem throughout the plant.

10. Mistakes To Avoid When Growing Marijuana: Read, read and read. The more knowledge you have, the less mistakes you will make. And most of the mistakes are made by somebody else before, so learn from them. Our free marijuana grow bible is a good way to start, with over 50 pages illustrated with 100 pictures.

Want to know more about growing marijuana? Check out the FREE book Marijuana Plant Care for more information!

To get your home-grow started, visit seedmasters.com


About Author

Robert Bergman is a master marijuana grower. Robert Bergman is the author of 'Marijuana Plant Care' and 'The Marijuana Grow Bible'.


  1. Yes ! Free the weed ! Don’t let big business ruin another good thing by turning it into a commodity . it should be growing everywhere , free to all .

  2. Hey beta loser retard learn to speak properly so people can understand your ass as fuck run on sentences shitlord. Jesus, people really are eager to embrace ignorance nowadays.

  3. Growing is easy after a few times of struggle . Take your time and don’t rush . Try to use Bio nutrients for a better taste and softer smoke . A Blower from Belgium .

  4. I admit I’ve violated Rule #9 a couple times and panicked. Once I doused the plants with a nasty chemical when they got mites; it stunted their growth and made the weed taste absolutely terrible, which was especially bad because it was surprisingly stony bud, so it had to be smoked despite the crappy taste.

    To all those guys out there beating their chests from behind their computer screen, take this quiz if you think you know a lot about marijuana, and then be man enough to share your results: http://marijuanagames.org/so-you-think-you-know-marijuana/

    This quiz will quickly make it apparent why Rule #10 above is imperative.

  5. In the north east ive run into a lot of “wanna Be growers” their stuff is usually crap!!! Ive said it once ill say it again……….growing real good healthy effective cannabis is not easy……

  6. Oh so you need CAPITAL letters to understand our language and APOSTROPHES in order to understand CONTRACTIONS? Did you need a period in order to understand I was done speaking to you? Do you need a tampoon for that vagina? How’s this for you bro (which is slang for brother)? Have you spell checked my comment yet for spelling errors other than those two things that are easier to type on a phone? You also fail to address the context of my message, which was poking a little fun at the theme song for ‘Pretty Little Liars’ tv show, which says almost the same thing as what you said in your OP. And FYI the girls are hot. My name is even a reference to the pitter patter of naked feet running amok. You appear to either be having a bad day or are so up tight that you can crack walnuts with your ass checks. Either way chill out BRO.

  7. I don’t mind a typo here and there. I just want people to make sense when they communicate with me. It’s just common decency. If that makes me a Grammanatzi, then sieg heil!

  8. Its kind of hard to over water when you grow outdoors…They are talking about NOT using window light and if you think that makes it a comedy piece then maybe you should read it again…Good info but already known.Most new growers run their mouths:) Co2 is an important part of growing any plant…

  9. Another good tip for new growers is to not over-water your plants. I’ve seen it again and again, but new growers get so eager to give their plants everything they can, they overdo the watering, and their plants suffer for it.

    If you stick your fingers 1-2 inches into the dirt, and it’s still moist, don’t water.

  10. King Daddy Kushmaster on

    Window light, C02, this is some of the most retarded shit. Is this a comedy piece

  11. LIke Johnny Appleseed, seeds should be thrown EVERYWHERE by EVERYONE who can get their hands on them.

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