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How to grow marijuana indoors: A beginner’s guide

June 6, 2016
Congratulations, you’re interested in growing your own cannabis plants for the first time! But before you flex that green thumb of yours, understand that growing marijuana indoors presents a unique set of challenges for the new hobbyist, and the sheer volume of information available on the subject can be overwhelming.

Our guide to indoor cannabis growing will help simplify the process for you into clear, easy-to-digest sections designed to help the first-time grower get started.

Step 1: Designate a cannabis grow ‘room’ or space

Growing marijuana indoors: Indoor marijuana grow space

The first step in setting up your personal cannabis grow is creating a suitable space in which to do it. This space doesn’t need to be the typical grow “room; it can be in a closet, tent, cabinet, spare room, or a corner in an unfinished basement. Just keep in mind that you’ll need to tailor your equipment (and plants) to fit the space.


How to build a simple home cannabis garden for $100, $500, & $1,000

Start small…

When tackling your first grow project, you’ll want to start small for multiple reasons:

  • The smaller the grow, the less expensive it is to set up
  • It’s much easier to monitor a few plants than a large number
  • Your mistakes as a first-time grower will be less costly

Remember, most new cannabis growers will experience setbacks and lose plants to pests or disease. A failed grow of two plants will put a far smaller dent in your wallet than 15 plants.

…But think big

When designing your space, you’ll need to take into account not only the amount of room your plants will need, but also your lights, ducting, fans, and other equipment, as well as leaving enough room for you to work. Cannabis plants can double, even triple in size in the early stage of flowering, so make sure you have adequate head space!

If your grow room is a cabinet, tent, or closet, you can simply open it up and remove the plants to work on them; otherwise, you’ll need to make sure you leave yourself some elbow room.

Cleanliness is crucial

Make sure your space is easily sanitized; cleanliness is important when growing indoors, so easy-to-clean surfaces are a must. Carpeting, drapes, and raw wood are all difficult to clean, so avoid these materials if possible.

Keep it light-tight

Another crucial criterion for a grow room is that it be light-tight. Light leaks during dark periods will confuse your plants and can cause them to produce male flowers.

Other variables

When deciding where to grow your cannabis, keep the following variables in mind:

  • Convenience: You’ll need to monitor your plants carefully. Checking on them every day is important, and beginners will want to check in several times per day until they have everything dialed in. If your room is hard to access, this crucial step will be difficult.
  • Temperature and humidity concerns: If your grow space is already very warm or very humid, you’ll have issues controlling your grow environment. Choosing a cool, dry area with ready access to fresh air from the outdoors is highly recommended.
  • Stealth: You’ll most likely want to conceal your grow from nosy neighbors and potential thieves, so be sure to pick a place where noisy fans won’t garner any unwanted attention.

Step 2: Choose your cannabis grow lights

Growing marijuana indoors: indoor marijuana grow lights

The quality of light in your grow room will be the number one environmental factor in the quality and quantity of your cannabis yields, so it’s a good idea to choose the best lighting setup you can afford. Here’s a brief rundown of the most popular types of cannabis grow lights used for indoor growing.

HID grow lights

HID (high intensity discharge) lights are the industry standard, widely used for their combination of output, efficiency, and value. They cost a bit more than incandescent or fluorescent fixtures, but produce far more light per unit of electricity used. Conversely, they are not as efficient as LED lighting, but they cost as little as one-tenth as much for comparable units.

The two main types of HID lamp used for growing are:

  • Metal halide (MH), which produce light that is blue-ish white and are generally used during vegetative growth
  • High pressure sodium (HPS), which produce light that is more on the red-orange end of the spectrum and are used during the flowering stage

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.

If you can’t afford both MH and HPS bulbs, start with HPS as they deliver more light per watt. Magnetic ballasts are cheaper than digital ballasts, but run hotter, are less efficient, and harder on your bulbs. Digital ballasts are generally a better option, but are more expensive. Beware of cheap digital ballasts, as they are often not well shielded and can create electromagnetic interference that will affect radio and WiFi signals.

Unless you’re growing in a large, open space with a lot of ventilation, you’ll need air-cooled reflector hoods to mount your lamps in, as HID bulbs produce a lot of heat. This requires ducting and exhaust fans, which will increase your initial cost but make controlling the temperature in your grow room much easier.

Fluorescent grow lights

Fluorescent light fixtures, particularly those using high-output (HO) T5 bulbs, are quite popular with small scale hobby growers for the following reasons:

  • They tend to be cheaper to set up, as reflector, ballast, and bulbs are included in a single package
  • They don’t require a cooling system since they don’t generate near the amount of heat that HID setups do

The main drawback is that fluorescent lights are less efficient, generating about 20-30% less light per watt of electricity used. Space is another concern, as it would require approximately 19 four-foot long T5 HO bulbs to equal the output of a single 600 watt HPS bulb.

LED grow lights

Light emitting diode (LED) technology has been around for a while, but only recently has it been adapted to create super efficient light fixtures for indoor growing. The main drawback to LED grow lights is their cost: well designed fixtures can cost 10 times what a comparable HID setup would. The benefits are that LEDs last much longer, use far less electricity, create less heat, and the best designs generate a fuller spectrum of light, which can lead to bigger yields and better quality.

Unfortunately, there are many shoddy LED lights being produced and marketed towards growers, so do some research and read product reviews before laying down your hard-earned cash.

Induction grow lights

Induction lamps, otherwise known as electrodeless fluorescent lamps, are another old technology that has been recently adapted to suit the needs of indoor growers. Invented by Nikola Tesla in the late 1800s, the induction lamp is essentially a more efficient, longer-lasting version of the fluorescent bulb. The main drawback of these fixtures is their price and availability.

Step 3: Give your cannabis plants air

Growing marijuana indoors: Cannabis plants receiving air from a fan

Plants need fresh air to thrive, and carbon dioxide (CO2) is essential to the process of photosynthesis. This means you will need a steady stream of air flowing through your grow room, easily achieved by means of an exhaust fan placed near the top of the room to remove the warmer air, and a filtered air inlet on the opposite side near the floor.

You’ll need to ensure that temperatures remain within a comfortable range for your plants, between 70 degrees F and 85 degrees F when lights are on and between 58 degrees F and 70 degrees F when they are off. Some varieties of cannabis (generally indica strains) prefer the lower side of the range, while others are more tolerant of higher temperatures.

The size of your exhaust fan will depend on the size of your grow space and amount of heat generated by your lighting system. HID systems put out a ton of heat, especially if they aren’t mounted in air-cooled hoods. People who live in warmer regions will often run their lights at night in an effort to keep temperatures in their grow down.

It’s advisable to set up your lights, turn them on for a while, and then determine how much airflow you’ll need to maintain a comfortable temperature for your plants. This will allow you to choose an exhaust fan suitable for your needs. If the odor of cannabis plants in bloom will cause you problems, add a charcoal filter to your exhaust fan.

Alternately, you can create a sealed, artificial environment by using an air conditioner, dehumidifier, and supplemental CO2 system, but this is quite expensive and not recommended for the first-time grower.

Finally, it’s a good idea to have a constant light breeze in your grow room as this strengthens your plants’ stems and creates a less hospitable environment for mold and flying pests. A wall-mounted circulating fan works well for this purpose — just don’t point it directly at your plants, because that can cause windburn.

Step 4: Pick your controls and monitoring

Growing marijuana indoors: indoor marijuana grow setup

Once you have selected your lights and climate control equipment, you’ll want to automate their functions. While there are sophisticated (and expensive) units available that control lights, temperature, humidity, and CO2 levels, the beginner will generally need a simple 24 hour timer for the light and an adjustable thermostat switch for the exhaust fan.

The timing of the light/dark cycle is very important when growing cannabis; generally you will have your lights on for 16-20 hours per 24 hour period while the plants are in vegetative growth, then switch to 12 hours of light per 24 when you want them to bloom. You need your lights to turn on and off at the same times every day or you risk stressing your plants, so a timer is essential. You can use a timer for your exhaust fan as well, but spending a few extra dollars on a thermostat switch is a much better option.

With the most basic models, you simply set the thermostat on the device to the maximum desired temperature for your space and plug your exhaust fan into it. Once the temperature rises to the level you set, it will turn the fan on until temperatures fall a few degrees below the set threshold. This saves energy and maintains a steady temperature.

Since you’re probably not spending most of your time in your grow space, a combination hygrometer/thermostat with high/low memory feature can be very handy in keeping tabs on conditions in your room. These small, inexpensive devices not only show you the current temperature and humidity level, but the highest and lowest readings for the period of time since you last checked.

It’s also a good idea to keep a pH meter or test kit on hand so you can check the pH level of your water, nutrient solution, or soil. Cannabis prefers a pH between 6 and 7 in soil, and between 5.5 and 6.5 in hydroponic media. Letting the pH get out of this range can lead to nutrient lockout, meaning your plants are unable to absorb the nutrients they need, so be sure to test your water and soil regularly and make sure the nutrient mix you are feeding your plants falls within the desired range.

Step 5: Decide on a cannabis grow medium

Growing indoors means you have many different methods to choose from, and whether it’s good old fashioned pots full of soil or a rockwool slab in a hydroponic tray, every medium has its benefits and drawbacks. Here we’ll examine the two most popular methods and the media they employ.


Soil is the most traditional medium for growing cannabis indoors, as well as the most forgiving, making it a good choice for first-time growers. Any high quality potting soil will work, as long as it doesn’t contain artificial extended release fertilizer (like Miracle Gro), which is unsuitable for growing good cannabis.

A very good choice for beginners is organic pre-fertilized soil (often referred to as “super-soil”) that can grow cannabis plants from start to finish without any added nutrients, if used correctly. This can be made 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 few different suppliers.

As with all organic growing, this method relies on a healthy population of mycorrhizae and soil bacteria to facilitate the conversion of organic matter into nutrients that are useable to the plant. Alternately, you can use a regular soil mix and then supplement your plants with liquid nutrients as the soil is depleted.


When Is Your Cannabis in Season? Factors That Influence Growing, Harvest, and Availability

Soilless (aka hydroponics)

Indoor growers are increasingly turning to soilless, hydroponic media for cultivating cannabis plants. This method requires feeding with concentrated solutions of mineral salt nutrients that are absorbed directly by the roots through the process of osmosis. The technique for quicker nutrient uptake leading to faster growth and bigger yields, but it also requires a higher order of precision as plants are quicker to react to over or underfeeding and are more susceptible to nutrient burn and lockout.

GroBox in living room

The GroBox provides everything you need to grow hydroponic cannabis in one kit. (Courtesy of GroBox)

Different materials used include rockwool, vermiculite, expanded clay pebbles, perlite, and coco coir, just to name a few. Commercial soilless mixes are widely available that combine two or more of these media to create an optimized growing mix. Soilless media can be used in automated hydroponic setups or in hand-watered individual containers.

Step 6: Determine what to grow your cannabis in

What type of container you use will depend on the medium, the system, and the size of your plants. A flood-and-drain, tray-style hydroponic system may use small net pots filled with clay pebbles or just a big slab of rockwool to grow many little plants, while a “super-soil” grow may use 10 gallon nursery pots to grow a few large plants.

Inexpensive options include disposable perforated plastic bags or cloth bags, while some choose to spend more on “smart pots,” containers that are designed to enhance airflow to the plant’s root zone. Many people grow their first cannabis plants in five gallon buckets. Drainage is key, though, as cannabis plants are very sensitive to water-logged conditions, so if you repurpose other containers, be sure to drill holes in the bottoms and set them in trays.

Step 7: Feed your cannabis plants nutrients

Growing high-quality cannabis flowers requires more fertilizer, or nutrients, than most common crops. Your plant needs the following primary nutrients (collectively known as macronutrients):

  • Nitrogen (N)
  • Phosphorus (P)
  • Potassium (K)

These micronutrients are needed as well, albeit in much smaller quantities:

  • Calcium
  • Magnesium
  • Iron
  • Copper

Seed to Sale: How Legal Cannabis Is Grown

If you aren’t using a pre-fertilized organic soil mix, you will need to feed your plants at least once a week using an appropriate nutrient solution. These nutrients are sold in concentrated liquid or powder form meant to be mixed with water, and generally formulated for either vegetative or flower (“bloom”) growth. This is because cannabis has changing macronutrient requirements during its lifecycle, needing more nitrogen during vegetative growth, and more phosphorus and potassium during bud production.

Most macronutrients are sold in a two-part liquid to prevent certain elements from precipitating (combining into an inert solid that is unusable by the plant), meaning you’ll need to purchase two bottles (part A and part B) for veg, and two bottles for grow, as well as a bottle of micronutrients. Other than these basics, the only other nutrient product you may need to purchase is a Cal/Mag supplement, as some strains require more calcium and magnesium than others.

Once you’ve purchased the necessary nutrient products, simply mix them with water as directed by the label and water your plants with this solution. You should always start at half-strength because cannabis plants are easily burned. It’s almost always worse to overfeed your plants than to underfeed them, and over time you will learn to “read” your plants for signs of deficiencies or excesses.

Step 8: Water your cannabis plants

Growing marijuana indoors: Water your marijuana plants

Most people won’t think twice about the water they use on their plants; if you can drink it, it must be fine, right? Well, it may not be an issue, depending on your location, but some water contains a high amount of dissolved minerals that can build up in the root zone and affect nutrient uptake, or it may contain fungus or other pathogens that aren’t harmful to people but can lead to root disease.

Additionally, some places may have high levels of chlorine in the water supply, which can be harmful to beneficial soil microbes. For these reasons, many people choose to filter the water they use in their gardens.

Get to Know What to Grow: Find Nearby Cannabis Dispensaries 

The most important thing to remember during this phase is to not overwater. Cannabis plants are very susceptible to fungal root diseases when conditions are too wet, and overwatering is one of the most common mistakes made by the beginning grower. How often you water your plants will depend on the medium used, size of the plants, and ambient temperature. Some people will wait until the lower leaves of the plant start to droop slightly before watering.

As you gain experience and knowledge, you will alter your grow room and equipment to better fit your particular environment, growing techniques, and for the specific strains you choose, but hopefully this article will provide you with a solid foundation of knowledge to get started on the right foot. And remember, growing marijuana is a labor of love, so spend a lot of time with your plants and have fun!

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Leafly Staff

Leafly is the world’s largest cannabis information resource, empowering people in legal cannabis markets to learn about the right products for their lifestyle and wellness needs. Our team of cannabis professionals collectively share years of experience in all corners of the market, from growing and retail, to science and medicine, to data and technology.

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  • Madd King

    O’k so how much light does it need in the flowering stage? do i leave my light on 24/7 untill i decide i’ts ready for veg?

    • Merry Greenleaf

      The timing of the light/dark cycle is very important when growing cannabis; generally you will have your lights on for 16-20 hours per 24 hour period while the plants are in vegetative growth, then switch to 12 hours of light per 24 when you want them to bloom. You need your lights to turn on and off at the same times every day or you risk stressing your plants, so a timer is essential. You can use a timer for your exhaust fan as well, but spending a few extra dollars on a thermostat switch is a much better option.

      • Yes and No. That’s why I like growing auto flowering strains. They will flower from seed right away no matter what the light cycle is.

      • John Soares

        some plants take an extra 2 weeks if you want all the trikes full for couchlock effect, a way to shorten cycle is cut back to 8hrs on 16 off. only after you have big buds and plenty of white trikes then you can cut cycle only then is recomended.

    • An Pot

      24 hours of light is ok for clones, but plants really want to have some dark time the plant does lots of important functions at night. We recommend going with 18-6

      • Commenter

        they’ll go insane without a bit of REM sleep

        • Yep. You would too.

        • Gooberhead

          REM always put me to sleep too.

          • Anthony Knuckles

            Rem sleep can’t be obtained unless you’re asleep, so how can it put you to sleep?

          • Nevi Løvfelt

            Yes me too. After all it mean Really effective Marijuana. 😉

    • Jeff

      18 hrs in Veg and 12 hrs for flower at end dark for 48 to 72 hrs, i usually try to make soil dry at that point that helps in the dry time.. Some of the most important things needed to dry a Dehumidifier and a fan

  • Great article,
    Complete and clear information, I got things much clear now.
    Thanks for sharing!

  • John

    This article on how to grow cannabis doesn’t really give enough details for us to do the process. What about pH? What about PPM? If there are any noobs that are still completely lost on this, I recommend the book 7 Steps To Grow Cannabis by Mr. Grow It. That book walked me through the entire process and made me understand it far better than this article.

  • Marlin Johnson

    You can’t just put it in a pot and set it in the window sill? It’s weed isn’t it?

    • An Pot

      lol your sure can!

    • Joshua Taylor

      If you want shit product and dont care what you get. Growing is an art and of you don’t believe me your plants will always be trash

    • mango heat

      you could but there are a few cool systems to grow for you without much effort like Plus I can sit on my couch and turn the light on and off from my phone which is rad lol

  • Karen Turner

    I have finally received my license to grow and I am thinking about setting up a grow tent in my basement. My only concern is that by the time I start growing, it will be winter and my basement is very cold. What is the best way to manage this situation? I know the lights can help with heat but when the lights are off, will it be difficult to maintain the heat? Thanks in advance

    • MichiGreen

      yes, it will get colder at night. The lights will probably keep the temps at least in the mid 70s during the day, but it night it may dip down into the high 50s. That’s ok for late flower, but during veg and early flower it helps to use a small heater (oil filled portable radiator?) in the tent or near the air inlet. If you can keep the temp above 60 at night it should be ok.

    • Wanda WaabiskaMigizikwe Boomho

      Addition to MichiGreen’s comment: best to lift the plants off the floor also with some kind of insulator under the pots (so that cold doesn’t drift up and penetrate from the floor)..unless there is already an insulated floor in the test.. I would lift them up anyway.

    • Anita Timmons

      I’ve never grown this plant before, but have read that compost actually heats up soil, while decomposing. This is an old grower’s trick. I read it in Mother Earth. Hope it helps. Just in case you’re afraid of burning your plants with over fertilization, maybe a layer of newspaper over the compost, and THEN dirt for your plants might help. I believe this will also heat up your growing area, even if plants are in pots.

      • Matt

        Compost will heat up nicely in large piles. You won’t notice any heat gain on a few inches of compost on a pot in a cold basement.

  • Alisha Jain
  • rvtraveler

    where do you get the seeds?

    • larry

      Ministry of cannibus

  • Kay Kay

    Shame on You “growbox” bastards…… everything to destroy my country….. U will pay for this….Even if the PM will do nothing, since she too is a pervert, God will hang you, for destroying peoples lives…. Be ready for that day…..I shall continue to PRAY for you perverts…..

    • Aeon

      Your god doesn’t exist.

      • Jeff Brown

        Actually, my God DOES exist. And he gave me cannabis to cure a wide range of ailments. It has been used as a treatment for thousands of years, and it grows naturally in the wild. Thank you, God, for the all natural cure of cannabis 🙂

        • Krusty

          Cannabis plants are not from this planet. They were brought here by God to help us.

    • Robert

      Everyone is entitled to they’re opinion including you, but I must ask what youre doing on this site if thats the way you feel.
      Thank you for your prayers and we’ll pray for you also..

    • Anita Timmons

      Dear Lady, I love this country AND God. He gave us many wonderful things, including medicinal plants that the CONTROLLED authorities don’t want to be used by “common” people, because they cut drug cartels and big pharma out of their profits. I’m not talking about cocaine, but medicinal plants. THIS particular plant we’re discussing, was ACTUALLY WRITTEN ABOUT IN THE BIBLE, as one of God’s HOLY plants! Much information that was meant for us “common” folk has been altered and or deleted from the Bible, by the Freemasons. Christ called them (these Pharisees were also in secret societies, they considered themselves above the “common” people) “Serpents!” He knew that the truth was NOT in them. I’m not trying to lecture you. I’m only pointing out some things that you may have overlooked.

      • Intense

      • mrpoohead

        God gave you nothing you either worked for it or inherited. The country is secular because the Founding Fathers weren’t dumb enough to require God.

        How do you know what was or not deleted – time machine. Are you the new Doctor Who?

        the Bible is fiction – personally I found Wilbur Smith and JK Rowling more inspiring.

        • Anita Timmons

          Yep. The Bible is fiction…that’s why so many things are now coming clear about what was predicted so many years ago. If you could only see you through my eyes. I only wish the best for you, but you are turning the wrong way, if you ever hope to be what you REALLY are. Yes, you were made in God’s image. That’s why you could really be a MAGNIFICENT BEING. And we all really DID inherit gifts! I understood music theory from age 2. I’m not bragging, because it’s not for me to brag about, because I was BORN with that. My son can speak several languages. I taught him to read at age 2, but NEVER taught the other languages! Don’t worry, Senior Poo, there are things that you have, that you were born with, but you’ve had them for so long, you just take them for granted! The men who created our government HAD A LOT OF HELP! These men were highly skilled, craftsmen in the arts of language, and statesmanship, yes. But it took REAL genius from God, that formed the words for our Constitution and Declaration Bill of Rights. God is NOT dumb! That is SO offensive, especially as you were created in His image!

    • hyelyte

      Don’t lie KayKay, you came here for growing info, you ain’t gotta fake with us. Also, stop shoving trash down people’s throats, I say “trash” because that’s what I believe it to be, opinions right? Spark a fatty and chill tf out.

  • John

    Hey I wanted to let you guys know I studied up after reading this article. This article is a small piece of the vast knowledge and learning that goes into growing cannabis. I bought an indoor grow tent using the website seems like they sorted through a lot of great brands and I am happy what they pointed out for me. has a good selection of led lights as well.

  • Ray Bradbury

    There’s a great step by step guide to home growing at I got a ton of pro tips from their social media, and my harvest was gorgeous!

    • An Pot

      Thanks Ray!!! Stoked your grow went great. Please send us some photos to so we can share them on our Instagram!

  • Kathy Morgan

    so….my girlfriend says i shouldn’t be spending so much time on my plants, like HUGE fights about this ALL the time; such bad energy haha…..she thinks i must be doing something wrong because i shouldn’t have to be in that tent working on them every day. I have 2 tents…right now i have 8 plants flowering, 3 vegetating, 1 re-vegging, plus i have about 30 clones rooting……i know it varies because some tasks take a whole lotta time; others don’t…but i enjoy every minute of it; every hour of making my own medicine! o’k…so…on average, folks, lol…how many hours /day do y’all spend working on your plants IN SOME WAY??

    • eddy122

      Here is my rule of thumb. If they complain about something you thoroughly enjoy, they have to go. Not the plants, the girlfriend.

    • Clint and Kimberly Gray

      plants take a lot of work, pick ur battles, but also u need 2 find a happy medium and balance ur plants and ur girlfriend.

    • hyelyte

      Your SO should always support you in your hobbies (within reason for some) she must not be a smoker bc then she should be helping. Lol. bad energy is never good, sometimes the toxic beings have to go. In this case your girl. At least you’re home and not in the streets. I swear women are ungrateful of gf s/bfs that stay home. Yes, I’m a woman.

    • Gary Sizemore

      I spend an hour or 2 daily, but I only have 1 plant. I can only imagine how much time I would need for as many as you have. I try to make sure all my girls feel like they are getting enough attention, but my SO is supportive of my growing. She laughs a little when I tell her how good my plant is doing, so I don’t think she believes I will get a harvest, but I’m gonna show her! Lol!!

  • sbusbee

    Holy crap. What happened to plant some seeds in a clearing in the woods and let em grow? Wow, this has got way too technical these days.

    • mr13

      works just fine i get autos and grow them in the spring. along with the regular full season varieties plant them in a sunny location and they will grow. just water them if you don’t get much rain .you get a nice early crop from the autos and then a full crop at the end of summer .in my experience the quality of the seeds is what matters the weed will grow as long as it/s in the sun and you water it..

  • larry

    I have a plant inside that is about 4 weeks old but only has 4 sets of leaves is this about right

  • Darran Davies

    ive been given some Stardawg plants and not sure what sort of strain they are ? ive looked at them and get a Lemon smell when touched, ive read that stardawg is Chem Dawg4 X Tres Dawg ?? ?? is there a way i can tell ? some of the stems and Branches are purple, ive fed them to make sure they arnt shocked in anyway and it just seemed to bring the Purple out more, the plants are really Healthy so dont seem to be that ! Any Ideas Please id love to know what they are.

  • Ozzie Franco

    I got some yellow spots that are showing up…first time grower here…can some one help me. Please

    I’m growing in soil

    • Clint and Kimberly Gray

      When my leaves start looking like that I trim the bad leaves off and then new one grow back.

    • Clint and Kimberly Gray

      Cut off the bad leaves

    • hyelyte

      Nutrients and don’t over water.

  • brian

    how long from seed to weed?

    • 80 days with auto-flowers no matter the light cycle . They grow crazy fast!



  • Clint and Kimberly Gray

    I’m a beginner and my plant is flowering… I have no questions, but I didn’t use anything on her… I put seeds in a pot and now it’s flowering I literally did nothing else… (indoor plant)
    I just wanted 2 let people know u don’t need books or how 2 guides u just need seeds, a pot, a light, and soil… (water as needed)

    • Robert

      Makes you wonder how it all came about, who planted that first seed and where did it come from. It’s all gotten really complicated,
      just saying.Havn’t found anything lately thats near as fun as growing tho.

    • hyelyte

      Its probably not dank either. lol. Growing is an art, some people are more serious than others. Also great lights, fat buds.

  • Nathan

    My plants leafs have curled up like a fist seem to be dark green i only water when they are light. So i dont think it is over water but sure need to get it fix 3 week of flower

    • Over watering is the #1 problem new growers have. I like fabric pots because the keep the roots dry out quicker.

    • hyelyte

      You need nutrients dude.

  • John Ramlow

    when dropping your light time from 20 to 12hrs do you do it all at once or do you slowly bring it down to 12hrs

    • hyelyte

      I go 18/6 to 14/10 then 1212

  • CO18knowledge

    Help me please. I don’t want to lose her. Had her outside, not blasting sun, past 3 months. Started cooling off outside, brought her in closet at night.
    Now what, she doesn’t look as happy as she was??

    • What a beauty!! Is it autoflowers? Did you grow it is soil?

  • Edward Mansfield

    Question on watering: is it better to continuously drip-feed water to the plants, controlling the moisture level with sensors, or is it better to give them a ‘large’ watering once or twice a day? I’m thinking of setting up an automatic watering system and wondering which option is better for growing efficiency.

    • Jason Dopal

      After the original drench (watering in), we should allow the pot to dry almost completely. Pick up the pot when you drench it. Feel the weight. After a day or 2 or 3…You will realize the pot is very light. It is time to water.

      For the first day or 2; Stick your finger in the soil to monitor the dampness. In no time all of this will become 2nd nature, and you will soon figure out how many days between watering.

      note: You water less in veg when the plant is small. In flower you will water at least a day sooner.

  • Jason R

    Hey does it matter where you get seeds obvi but I mean Like if Place a says they have Skunk and place b does also who confirms both are same? Kept googling until I found and it said was approved by the Cannabis Cultivation Council…. Do u know anything about that??

  • Home Depot is down with the cause, we used to call it grow depo.

  • Arejay

    What’s bad about using the soil mixed with MiracleGro “fertilizer”? I don’t get it…it just says “it’s not advised” or something…
    Why is it bad?

    • hyelyte

      Its not bad, they are just being super anal. I’ve seen plenty of great harvests from miracle gro.

  • Conrad Ross

    When does the plant bloom ?

  • Bob Sanders

    Have any advice for people who live in studio apartments? I don’t have an extra room to hide from the light and noise, plus closet space is small and I am concerned about the smell from growing. Thanks!

  • Ok…so I recently uncovered a nasty looking seed in some high end stuff….So I said wtf…germinated….it sprouted, and in two weeks here come the hairs.
    Here’s where the question lies….
    I’m moving her indoors after Xmas…
    Being that she’s showing hair can I veg her anymore?

  • I need Help

    So what kind of Soil can I get because idk how tf to make supersoil 😂 Can I honestly just go buy soil and go from there?

  • Raul Gonzalez

    I have a well, wondering if using this kind of water makes any difference

    • mr13

      i also have well water i use it all the time but if you have a water softener i do not recommend using it .and also check the P/h my un softened well water is hard and the p.h is below 8 so i have to bump it up to 5-5/6.0 with a teaspoon of vinegar.. also if you do use vinegar . use the water immediately because it will not hold the p.h long like acid products you can by in the store i only use vinegar because i burned up a crop with acid once never liked it after that …

  • Cannabis Grow Guide

    I like to use Canna Coco nutrients. Check out how I mix them up when my plants are ready to flower.

  • Michael Tourek

    Nice, I can’t wait to start growing my own bud. Leafly team, this i great advice, you guys should make more of these:)

  • Brian Rich

    Whats the best seeds. Im a beginner. Im old school pothead not up on the new fades? Affordable but real good?

  • Darrell Foster

    Do people not read? A lot of these questions are answered in the article .

  • hyelyte

    Date a grower, that’s the ONLY way you’re smoking for free! Lol. Legit growing is pricey!

  • roadhunter

    It’s called pot for a reason 😉

  • L king

    So can i get a list and step by step direction on like how to do this ive been looking and i cant find nothing and i want a amazing product and please know what your talking about

  • Arjol Yj

    Its too hard grow amnesia haze, i heave grow only cream caramel and lemon haze. Whats types of dificulty have amnesia over dhe lemon haze. I wont to try it indor.

  • Michelle

    So right now I’m doing 18/6 for my plant, how do I know when it’s the right time to start doing the flowering stage ? It’s over 2 months.

  • wow you went there.



    • mr13

      rain water works but i don’t recommend storing it in a closed container . it can out gas some pretty nasty smelling stuff , i only use it fresh out out of a large open container. i guess it would depend where you were located . in lower Michigan we have factory’s ect here my rain water may not be as good as quality like yours ..

  • Anthony Habura

    I have had GREAT success with t-5 light fixtures. Low stress training and ph’ing the water and nutrients is a must. I always feed at half strength with straight water every other watering. As a cancer patient it is much cheaper and organically grown. I have made a tincture with the harvest and I take it daily for its medicinal properties. My cancer is in remission and I’m trying to keep it that way. The stains I grow also help manage pain and help with sleep. It was a godsend when I was going through chemotherapy and a stem cell transplant. The chemo makes you feel “sick/ nauseous and it kills your taste buds. The marijuana not only made me feel better but it stimulated my appetite.

    • dana007

      What strains do you use for pain? Im glad to hear youre in remission xo

  • Anthony Habura

    During vegetative growth 18-6
    Light cycle and 12-12 when flowering is started.

  • Gmo

    Any recommendations on where to buy my seeds?

    • mr13

      ilgm,or ,…seed supreme both have top quality seed and fast safe shipping.

  • Gmo

    Also recommendations on lighting for start to finish

  • Alain Gaudet

    I may have missed it but what to u recommend keeping the humidity at during different stages

  • DaiDai The Artist

    Soo can I use both types of HID lights or is it better to pick just one of them?

  • Turner Jamison

    Have video how do I upload

  • Timex

    When in veg do I start trimming away broad leafs? Or not