Grow marijuana; easy step by step guide… Growing Marijuana Indoors, Grow Marijuana Outdoors, Marijuana Seeds, Marijuana Grow Lights and if you get stuck and need some help there is plenty in the Marijuana Grow Forum.

Learning how to grow weed by yourself at home will give you the opportunity to control what marijuana seed strains you purchase, weather they are autoflowering, feminized, indica or sativas and which grow lights and what nutrients you feel comfortable with. We cover the basics through to advanced techniques. We ensure that even the beginner can grow some high quality weed without overwhelming you with lots of technical language. Don’t worry – we are here to help!

We also review Grow Boxes, Grow Tents, Stealth Grow Boxes and PC Grow Boxes

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Marijuana seed strains

Marijuana can be categorized into two main strains; Cannabis Sativa strains which generally offer a more uplifting and euphoric high or Cannabis Indica strains which like its smell, offers a stronger more heavy stoned feeling.

Indicas tend to be shorter and more compact whereas Sativas are taller and more leggy. Modern growing techniques also mean that there are a seemingly endless varieties of hybrid marijuana strains available, giving the best of both worlds. Read more about the difference between Sativa vs. Indica.

Visit >> ALL MARIJUANA STRAINS + TOP 5 LISTS + REVIEWS

We have reviewed hundreds of marijuana seed strains including:

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Green House Strain Hunters in Cali, Colombia

Kings of Cannabis

 

You may not have heard of the name Arjan Roskam but you would have certainly heard of Green House seeds, based in Amsterdam. Arjan is the founder and behind strains such as White Widow and White Rhino. Watch him and his crew of Strain Hunters discover new strains of marijuana in Cali, Colombia.

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Growing marijuana

Basic requirements – Marijuana plants need water with the right pH level, grow lights, nutrients and suitable air, ventilation and temperature. However you choose to grow weed you should bear these basic requirements in mind and ask yourself at each stage how can I improve what I offer my plants?

Cannabis life cycle – Cannabis is an annual plant. If grown outside it germinates in the spring, lays down a lot of vegetative growth throughout the summer, and then flowers in the fall. Growing marijuana inside you would germinate the marijuana seeds, then place the seedlings under 24 hour lighting (some people use 18 hours on and 6 off) for the vegging stage and when your plant has grown large enough you will want to trick it into flowering (budding) by adjusting the light sequence to 12 hours on and 12 hours off, the plant thinks it is fall.

Approximately 10 – 12 days after the flowering stage begins you will start to notice two small pistils right at the crux of the branch joint, take a note of the sexing marijuana plant pics. To produce the most potent buds it is necessary to remove the male plants as they have very low amounts of THC, CBN and CBD when compared to the females and they will also make the female plants start to seed. Remove the male plants before they pollinate the female plants as once pollinated the females will turn to seed and we don’t want that! The flowers are the bud, the thing we’re looking for and what you will harvest and smoke.

Without males around the female plant will put all of her energy into creating sticky, THC-laden flowers rather than cannabis seeds. The result is essentially a virgin plant, or sensimillia, which comes from the Spanish ‘sin semilla’ or ‘without seeds’.

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Growing hydroponic marijuana indoors

So you’ve decided to grow weed indoors with an indoor grow set up. Now you will be in total control of the plant’s environment. Be aware that this carries a greater risk than growing marijuana outdoors. But on the upside, you can expect to harvest some premium grade frosty bud in a much shorter time and you won’t be dependent on the season.

We also review Grow Boxes, Grow Tents, Stealth Grow Boxes and PC Grow Boxes

Hydroponic growing systems can be simple affairs or more complex like Sea of Green or Screen of Green or large grow systems like from Fullbloom Hydroponics. Hydroponics just means that the plants can grow without soil, they will usually grow in an inert medium and all of their nutrient requirements will come straight from the water they are added to. After choosing your hydro setup you will need to pick what growing medium to grow your marijuana in; some prefer the organic nature of good soil and others like the more synthetic such as rock wool and perlite. Apart from this difference the way you set up your grow room will be the same. So firstly we will look at the different marijuana grow methods. More info on how to grow marijuana indoors.

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Growing marijuana outdoors

Growing outdoors will of course give you less control over the growing conditions. Your crop will be prey to weather, disease, thieves, even the law and a host of other things that are beyond your control. On the other hand, if the crop is not on your property you can distance yourself from it and avoid things like nosey neighbours and the cost and hassle of setting up an indoor grow room.

The first and most important factor to bear in mind if you decide to grow weed outdoors is site selection. Assuming that the site is not on your own property you will need to think about discretion. You will also need to consider soil quality and availability of water. Every time you visit the site you put yourself and your crop at risk so it makes sense to choose a site where your plants can be mostly self-sufficient. More info on growing marijuana outdoors.

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Marijuana grow lights

Light is one of the basic requirements to grow weed and it is important to get this right. Marijuana plants need different parts of the light spectrum to grow, from blue light during their vegetative stage and yellow, amber, red and far red light during the flowering or bud stage, marijuana needs light between 420 and 750 nanometers (nm), note that the well respected McCree scale from Utah Stat University shows the light spectrum for all plants starts at 375 nm, marijuana is closer to 420 nm.

McCree Photosynthesis Scale

There are many types of grow lights on the market – let’s take a look at the most popular four.

Click here for our Marijuana Grow Lights main page.

LED grow lights – Recently, modern technology has finally brought the ideal light to the market. Broad spectrum LED lights really do offer it all to the indoor marijuana grower. LEDs offer power consumption at approximately 15% of a similar HID, long life span of around 50,000 to 60,000 hours, no ballasts, no maintenance costs, no excess heat produced and effectiveness in all stages of the plants life. Broad spectrum LEDs are our pick for indoor growers who want a simple straight forward setup whilst maximizing space requirements and minimizing heat and electricity costs. Read more about LED grow lights.

HID grow lights – High intensity discharge grow lights (HID grow lights) are the industry standard used by every generation right up to now. It is a fight between HID and LED these days and the LEDs are winning the race in recent years only. HID used to be the most efficient way of transferring electricity into light; you might have seen them in use at stadiums and tennis courts. However LEDs are more efficient at turning electricity into light these days and that is why you are seeing LEDs make their way into car headlamps, yachts, street and stadium lighting.

There are two main types of HID marijuana grow lights; High Pressure Sodium (HPS) grow lights and Metal Halide (MH) grow lights.

Metal Halide (MH) grow lights emit light with a lot of blue in the spectrum. This makes them ideal for vegetative growth however they are not very efficient lights during the flowering stage. Many growers use metal halide lights just for the vegetative grow phase and then switch to high pressure sodium (HPS) grow lights for flowering. Using a mix of both lights throughout the entire grow is one of the optimum ways of providing light for your plants. More detail on MH grow lights.

High Pressure Sodium (HPS) grow lights emit the familiar orange or amber light you might see in street lighting. This light spectrum (yellow, orange, red) is the most effective for the flowering phase of growth. Although HPS grow lights are not the optimum light for vegetative growth they work very well and are the most popular type of grow light for anyone who may be limited by budget to just one lamp. They also run more efficiently than metal halide lamps, emitting more lumens for the same Wattage. If you are only going to use one lamp and have not considered LED grow lights then this is the one for you. More detail on HPS grow lights.

Fluorescent and CFL grow lights are now a little more popular to growers due to their compact size. Bulbs usually either target the blue spectrum used in the vegetative stage or the amber / red for the flowering stage however there are a couple of broad spectrum units available which should be suitable for growing marijuana from seed to flower. Fluorescent bulbs are available in a variety of types, roughly speaking they can be categorized into cool, warm and daylight light spectrum’s  The daylight (white light) types work best but a mixture will also suffice. They are relatively cheap to buy and don’t need a ballast while their low heat output means fluorescents can be placed in very close proximity to the growing plants, indeed this is advised as their actual light output (measured in lumens) is quite low. Many growers use fluorescents for seedlings and young plants as their light demands are lower but there are better all round solutions like LEDs. Read about the new CFL compact fluorescent grow lights.

Read more »

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48 responses to “Home

  1. before a
    week i spray my plants with a
    pesticide and now they has start
    to have little signs of burn in the
    leaves.what can i do to avoid the
    burning of the plants?

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    • NEVER, EVER spray cannabis with a pesticide, while smoking it destroys the pesticide residual, any patient who uses a Volcano Vaporizer will get the actual poison in their system.!

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  2. where do i make 1st cut so plant becomes wide bush?

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    • how much watering does marijuana plants need

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  3. living in australia how do i get started

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  4. What do I use to get rid of mites and any bugs eating my plants? The cheap way.

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  5. I was given 2 plants by a neighbor and they are both from the same crop…however, 1 is hardy and one is limp, leaves curling. They both are in the same room-I water them both the same time and amount so what is the problem Every day for the past week I have to pick off the dying leaves. Whats up?

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  6. i ‘ll like to know how to grow cannabis, medicinal marijuana.

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  7. my plants sprouted and are flopping over on there side what should i do?

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  8. Hi, my plant is growing, winter. The plant grows about 2 cm, which then dies. What is the reason?

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  9. hy keanon here. My sativa plants stem is bending at the bottom, The leaves are healthy but the tips are curling abit and can i use ice water instead of tap water ?

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  10. Help outside grow little green catepillars ruining my buds!!!!!!

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    • 9dv2I live in so cal where it has essentially been summer all winter.
      I planted a few outdoor plants in early Sept and they are now budding up nicely with trichomes galore. My concern is that we may, at some point, have some cooler weather and if lucky, some rain. How will this affect quality. Should I somehow protect from heavy rain etc. I would appreciate an education on this please.

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  11. Please tell me best way to germnating method also what bestsoil I done the shot glass I am suppose to warm or cold water somebody help me please asap

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    • Roll a sigle seed into 1 sheet of toilet paper and roll it up with the pointed end visible. soak in water and leave in window for about a week untill roots sprout 1/2-1″ then unroll and plant

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  12. Hi all.. I have 2 clones growing indoors using a grow light from Home Depot, they started to bud as I have cut light to 8 hrs, how long will full budding take normally?

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  13. I have enjoyed this forum and will be back im a first time grower and im getting to the budding phase so looking for some advise. Growing indoors in dirt. Not sure if I should ad anything to the dirt besides the cal-mag I’ve been using?

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  14. is there a place in the US I can buy seeds from?

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    • was a stoner back in the 70′s and 80′s. used to grow back then. been away from the lifestyle since then and want to use the big weed again since I have medical problems now. think I can get the benefits of it.

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  15. I’m growing for the first time .where should I start indoors? Or outdoors?

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    • It is a very good question. If it is the right time of the year, very early spring we would suggest growing outside. Start germination off inside, see this guide http://howtogrowmarijuana.com/seed-germination and then when the plant is maybe four inches tall report it in a large two foot wide pot with excellent soil, we recommend purchasing soil so it is bug free. You can try Ideal Soil we have heard good things about them. Give the plant some support with a stick or piece of wire. However if you want to grow inside you will have greater control and we suggest grabbing a Cash Crop from guys like Dealzer. We would suggest starting out small scale with lights, you could consider using full spectrum LEDs instead of HID lights, the LEDs give off far less heat and cost 50% less to run for the same amount of light – note these are the only LED lights on the market that are actually full spectrum and grow from seed to harvest, i.e. there are no gaps or bands in the spectrum.

      Either way you will need some seeds and http://www.herbiesheadshop.com/ have a terrific selection of both inside and outside varieties.

      Good luck Any questions, check out our forum.

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      • HOW can I plant cannabis easily in out door

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  16. What’s some good soil or something to put on plants to make them grow quicker and better??

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  17. Hi, I’m growing for first time , after germination I put my seed in the soil , after 1 week half of them have grown with 2 small leaf others not , all seeds are same and condition is same . why others have not been grown yet ?

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    • This can be down to a lot of factors. Try not to move germinating seeds too early. Make sure they get some light after the initial germination, i.e. not buried. Some seeds do just die, it is a fact of life…

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  18. I have 2 nicely started plants that I am growing in my greenhouse. They are about 8 inches tall at this point. One seems to have the beginning of buds on it already. They have a fairly warm environment and look healthy. I have no idea how tall they are supposed to get or if we stake them? Or, for that matter, how to harvest. Any advice for a beginner?

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    • Hi Jan. Sounds unusual to have buds that earl but some strains do bud very early and very short! Maybe consider chatting to our friendly forum people?

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  19. just want to get something off my chest here. I am an american currently living in serbia. I miss america and i miss her sweet sweet weed plants. i want to come home and get high off some quality plants grown by someone who cares. the weed in serbia suck so bad that i dont even smoke anymore. whats the point if all i do is get paranoid and sleepy? keep up the growing my fellow famers and love your plants!

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  20. can u move your outdoor veg 2 indoor budding

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    • As long as you can control the lighting. Try joining our forum where you can ask specific questions of experienced growers.

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  21. im a beginner grower and I want to know the watts for the LED lights. and the numbers or watts or what ever they go by. what is good for about 4 plants?

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  22. Hi. I am growing for the 1st time , I am growing in my close. I got 4 70 watt high output blue grow lights , I keep them on from about 6:30 am to 10-10:30 pm , they grew two inches by me doin that but I feel like they should be gettin bigger …if anybody can help me with making them grow bigger and better plz email me at Cassandraramadhan@yahoo.com. Plz anybody I will pay for your help

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  23. What do you think of ozone or uv light in the grow room?

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  24. I have been smoking awhile and have never been interested in growing. I do save all the seeds for some reason. I was just thinking of maybe trying my hand at growing the seeds to see if i could grow my own weed. think this is an idea that could work or am i just fooling myself?

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    • Easily done Tina. Check out our forum for more information on how to grow…

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  25. I had got the medical before and it is great just wanted to know what to do for growing it my self

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  26. I ordered some seeds from you and they havent yet arrived i problem cause I was billed for them just never received them can you find out whats happened to the order please. I ordered Tangerine Dream a 5 pack approx. 2-3 weeks ago Please send me an email once you figure it out ok thank you marty mcneil

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    • Marty, we do not sell seeds. You have ordered from one of our advertizers and should follow up with them.

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  27. I was wondering if I could send you guys some pics on what the best places to grow weed at on the places I got on camera, so if I could get somebodies email whos a professional I would be happy to here with spot you think is the best thanks, here’s my email thedudes182@gmail.com

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    • Austin, we can’t answer individula questions like this. You should join our forum and ask questions there. We have experienced growers who can help you out there

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  28. Is it possible to grow great plants in a 50gal. fish tank?? If it is, how would ya go about doing it? Plz help :)

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    • Well, you could plant inside a kitchen sink if you wanted. Why do this? Maybe better to just buy some cheap plastic pots?

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  29. blooming period, the 8 weeks dose it start from frist sign of buds or the day you start the 12 hour light change

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    • Hey Ras, the 12/12 light cycle will help kick start the blooming or flowering period but it will not be instant so until you see the first sign of buds it has not yet occurred externally but may have occurred in the plant internally – hope that helps.

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  30. if you have bad pain but not dieing of cancer can smoking this weed help for pain. and are there diffrent types of weed that may help more then others. i suffer from bad pain every day and pain level is very bad from bone problems and disk problems in my neck and back. tylenol #3 dont work to well and i am taking too much so i am afrain of hurting my liver.

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