Most dehumidifiers and ACs have built-in thermostats, but if they don’t, you’ll want to buy an external one.
The growth stages of marijuana can be broken down into four primary stages from seed to harvest:
Plants in the vegetative stage maintain a low odor as they haven’t begun to produce terpenes, the plant’s aromatic compounds. As weed plants transition into the flowering phase, trichomes will start to develop and produce terpenes, causing them to smell more.
Regulating temperature and humidity in your indoor grow space.
It’s a good idea to start small—the smaller the grow, the less expensive it is to set up. Newbie mistakes will be less costly if you only have a handful of plants. Additionally, most state laws only allow for growing six plants, but some allow up to 12.
Think of all the equipment in your grow space as organs in the body—if one fails, the others will have to work a lot harder for a bit, and then will fail in a matter of time.
Even in legal states, you may want to conceal your crop from judgmental neighbors and definitely from potential thieves. Growing indoors allows you to grow discreetly behind a locked door.
Check out our Guide on nutrients for more info.
There should be a comfortable airflow both above and below the canopy, and fans shouldn’t blow air directly onto plants—this can cause wind burn, which makes leaves recede into a claw-like deformation.
There are many different media to choose from, including good ol’ fashioned pots full of soil, rockwool cubes, a hydroponic tray, and more.
Light emitting diode (LED) technology has been around for a while, and they are getting more efficient all the time. The main drawback to LED grow lights is their cost: well-designed fixtures can cost 10 times what a comparable HID setup would.
You’ll also want to take this time to check over your weed plants for pests, mold, or nutrient deficiencies.
Plants need 18 hours of light a day when in the vegetative stage and 12 hours a day when flowering. The reduction in light from 18 to 12 hours a day is what triggers the flowering cycle—when weed plants start to grow buds.
You can make this yourself by combining worm castings, bat guano, and other components with a good soil and letting it sit for a few weeks, or it can be purchased pre-made from a local nursery or grow shop.
Good soil for cannabis relies on a healthy population of mycorrhizae and soil bacteria to facilitate the conversion of organic matter into nutrients that a plant can use. Alternately, you can use a regular soil mix and then supplement your plants with liquid nutrients.
The two main types of HID lamp used for growing are:
Odor control in your indoor marijuana grow.
Growing weed indoors is great because you can grow it any time of year and you’ll have complete control over the plant and what you put into it. Live in an apartment or a small house? Don’t worry, you can grow weed practically anywhere, even if you don’t have a backyard or a lot of extra space.
You’ll need to ensure that temperatures remain within a comfortable range for your plants, between 70-85°F when lights are on and between 58-70°F when off. Some varieties of cannabis—generally indicas—prefer the colder side of the range, while others—typically sativas—are more tolerant of high temperatures.
Terra cotta pots offer a unique set of benefits to growers in hot climates.
In addition to bulbs, HID lighting setups require a ballast and hood/reflector for each light. Some ballasts are designed for use with either MH or HPS lamps, while many newer designs will run both.
Although you’ll be controlling the climate inside the grow space, climate outside the grow space will affect your plants. If the environment outside your grow space is very warm or humid, you’ll have issues controlling your grow space. Choose a cool, dry area with ready access to fresh air from outside.
Remember, a common mistake newbie growers make is to overwater plants.
Don’t go overboard with fans or you’ll give your plants wind burn. Leaves should be gently rustling but not waving around.
I hope that helps you as much as it would have helped me when I started growing.
Dry buds upside down in a space that’s not hot, humid, or dry. After small stems crack instead of bud and buds “pop” off without leaving strings, they are fully dry.
A bad case of White Powdery Mold can ruin a whole crop if it’s left to go out of control. It is NOT safe to consume or smoke cannabis buds that are covered in WPM. But WPM is prevented 95% of the time by ensuring that you have great airflow around your plants and preventing the grow space from getting too hot or humid, especially towards the end of flowering when your buds are getting thick and dense.
7.) Seek out experienced growers, but always take every piece of advice with a grain of salt!
2.) The grow light may be the most important tool in the grow room.
When I first started growing I remember the thoughts frantically rushing through my head when choosing nutrients, “Which nutrients are the best? What supplements do I need to use so I get great yields?”
And it’s not just buds that benefit. One common grow room ailment is known as White Powdery Mold. It’s particularly common when indoor growers put a plant in a closet or cupboard without really doing anything else to enhance the environment because this often leads to hot, stagnant air near your plants. WPM loves hot, humid, non-moving air.
If you haven’t started growing marijuana yet, today is the day!
These strains were grown in the exact same conditions. The Amnesia Lemon produces big green buds of medium potency, while the Pacific Punch produced purple and sparkly buds that stayed small but were incredibly potent. I did nothing different between these plants. The differences are 100% from the genetics.
When you have bad airflow, you may come across this. WPM actually looks like someone may have accidentally dropped some flour or other white powder on the leaves of your plant!
If you click the picture and zoom in close, you can see that nearly all the sparkly trichomes are milky white, indicating that this bud has reached the highest levels of THC.
Even if you grow two strains with the same grow light, grow medium, nutrients, and care, they can grow WILDLY different from each other.
All that being said, some of the most experienced and talented growers are sharing their knowledge online, and it’s worth seeking out online growing communities during your personal growing journey.
Great airflow, especially with a fan venting out hot air, will make it easier to maintain a great environment. Keeping buds relatively cool in the flowering stage (under 80°F/27°C if possible) helps maximize your overall bud quality, bud appearance, smell, and potency.
3.) The strain makes a HUGE difference in your results.
If you’re looking for a friendly and safe place to talk to other growers online, GWE has one of the (in my opinion) best cannabis growing communities!
Not sure which grow light to get? Check out this list of the 5 Best LEDs for Growing Weed (beginner-friendly)
It’s helpful to take a little time when buying seeds to…
These plants were grown together from seed in the same environment. One stayed small, the other got huge. Genetics makes a huge difference! Now imagine if they had been grown in different setups with different grow styles. Advice that works for one plant might not be good advice for the other.
Growing weed is easy… especially with these 7 tips!
You may also want to check out the simplest cannabis grow guide ever!
1.) More nutrients does not equal more buds.
It’s not worth re-learning everything from scratch when you could get information from experienced growers to make your plants grow exactly how you want from your very first grow.
These plants are the result of following the bottle instructions with a SF-2000 LED. Easiest nutrients I’ve ever used. I just smoked some of these buds and it took me an hour to get back to this article.
At this point, trim and jar buds. The bag here contains the “trim” (all the leaves I trimmed off before jarring the buds, which will be used to make extracts or edibles). “Burp” the jars daily for 2+ weeks. This “curing” process increases potency, smell, and smoothness.
Great airflow also prevents the bud killer known as bud rot. It even helps prevent some types of bugs from attacking your plants. And that’s not the only benefit, having a nice breeze going around your plants can actually make them grow faster overall.
But sometimes, even the most well-meaning and experienced growers will give advice based on their genetics, environment or personal grow style, and it might not necessarily apply to your particular situation. I highly recommend to always listen to your instincts if advice just doesn’t seem right. Just like a medical doctor who seems wrong. No one knows your plants (or body) better than you.
After months of waiting, it’s easy to jump the gun and harvest your plants too early. It’s also easy to get caught up with life and neglect your newly harvested buds during the drying and curing process. For truly killer buds, wait until the right time to harvest your weed, and take the time to properly dry and cure them.
Wondering where to buy marijuana seeds? There are lot of choices, but learn about the marijuana seed banks we recommend here: https://www.growweedeasy.com/seeds.
One thing you will always want is a fan. Marijuana plants like fresh air and maintaining a flow of air over the plants helps prevent mold as well. Any oscillating fan is great for this.
Why are there so many things to think about and why do I need so much equipment?
You space will need access to power and ventilation, and the walls will ideally be covered in Mylar or some other reflective material.
The next big decision you need to make is whether you will grow in soil or soil-less.
This temperature and humidity monitor is great, because it works remotely. You can put a sensor inside your grow room and monitor the environment from the screen outside the room.
Climate Control Recommendations.
The first thing you need is a space in which to grow. This space can take any number of forms.
This pH meter is inexpensive and works great. The General Hydroponics set of pH-up and pH down solutions is ideal for adjusting the pH levels to maintain balance.
If the mineral content is high, use nutrients that are made for hard water. If the water contains chlorine, you’ll have to let it sit for 24 hours before using it, to evaporate all the chlorine.
You may be thinking about using bag seed. As long as you are aware of the possible problems with that, it may be the right option for you. Read about using bag seed to grow weed. That article covers both the problems you may face and how to maximize your chance of success.
If not, you’ll need to get your hands on some seeds or clones in order to grow a cannabis plant (imagine that!)
Cannabis plants are ravenous. They will eat a ton of nutrients if they are provided and use them to grow rapidly.
Prices have come down so much that you can get quality LED fixtures for far less than you would pay for the equivalent HID system.
The second is Crop King Seeds. Because they ship everywhere, they are your best bet if you do not live in the US or Australia. In the US, ILGM is better due to the guarantee and the free shipping (Crop King charges $20). Review here.
For exhaust fans, you want to avoid booster fans. They never work well. Instead get an inline fan.
If you are thinking about fluorescent lights, they may make sense for a very small grow of a plant or two. Anything larger than that and you would need too many bulbs.
Required for Growing Cannabis.
Your marijuana plants like a certain temperature and humidity.
Our cannabis nutrient deficiency chart can help you diagnose any nutrient excesses and deficiencies. We also have an article entitled “How Often Should I Give My Plants Nutrients?”
You may already know someone who grows and can hook you up with clones. If so, lucky you!
If you are just starting out, there is a ton of information to digest. I have a brief guide on growing weed indoors here, but the best way to get going and avoid the most common mistakes is with a comprehensive guide that takes you through everything.
Here is a brief checklist of the items you must have and the ones you could do without, but should consider getting, since they will make things much easier. The links take you below to the appropriate section in this article.
So why then does it seem so complicated to grow marijuana?
Even if you can grow legally in your area, it is still a good idea to let as few people as possible know that you are growing. For that reason, I highly recommend you invest in a charcoal filter to rid the exhaust from your grow room of any odor.
A Suitable Space.
It’s even better if that guide is free.
If you need to adjust pH, use pH-up and pH-down solutions. Follow the instruction on the bottles.
There is obviously no obligation to do so, but if you do need seeds, his store is really good and he runs a lot of sales, so you might as well repay him for making his grow guide free.
When growing in soil, marijuana likes a pH between 6.0 and 7.0. You do not want to stay at a single pH level, but let it vary throughout the range, with most of the time being between 6.2 and 6.9.
The Fox Farm Nutrient Trio is tried and tested for growing cannabis in soil. It is my top recommendation.
If you buy a kit like the one I recommended above in the climate control section, you do not need to worry about getting a filter, since one is included in the kit.
The equipment you need in order to maintain the proper temperature and humidity depends on the climate where you live, your grow space and your lighting system.
If you’re buying a carbon filter separately, this one from Apollo Horticulture is great and sells for a reasonable price.