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How To Grow Medical Marijuana

In many states, the Medical Marijuana patient is allowed to grow his or her own plants.  Depending on rate of consumption, growing your own marijuana makes sound financial sense.  Additionally, it can also guarantee you an unending supply of your favorite strain of weed.

Unless you own vast acreage, your best bet for growing marijuana is to grow your crop indoors using a hydroponics system.  Prices for hydroponics setups range from $300 to many thousands of dollars.  The biggest differences between systems are: 1) the amount of automation; 2) one stage only vs. all inclusive mother plant area, vegetation area and flowering area.  The advantages of the latter are significant:  by having a permanent mother plant you have access to unlimited clones whenever you want them; you can reduce the gap between harvest with the separate vegetation and flowering areas.  Stealth Hydroponics has some very efficient low end systems.  Their grow tents are great if you don’t have a closet.   If you want the Rolls Royce of hydroponics take a look at BC Northern Lights.

Your natural tendency is going to be to grow as big of plants as you can.  This can backfire on you.  Each plant needs a footprint of at least three feet by three feet.  Any less and your lights won’t illuminate much below the top two feet of your plant.   Another problem with trying to grow big marijuana plants is that if you’re not careful they can grow right past the lights.  A good rule of thumb to follow is that your plants will grow one and a half feet during the flowering stage…so you should start the flowering process as soon as the plants reach to within 24” of the lights in their highest position.  Depending on the strain, this can be anywhere from three weeks to eight weeks from starting with a clone.

The real secret to success in trying to grow marijuana is to find a source for clones.  This guarantees two things: 1) your plant will be a female; and 2) your plant will survive (the most precarious period in a plants life is the first week or two when sprouting from a seed).  The great thing is that once you have a clone,  you can make clones of your own and have a perpetual crop going year-round.

Advanced nutrients are essential to a good marijuana crop.  Miracle Gro and other normal fertilizers won’t work.  Both Stealth Hydroponics and BC Northern Lights offer great advanced nutrient products.  If you follow a rigorous schedule of draining and refilling the water every two weeks and adding nutrients as required, you really can’t fail.  Tap water, let set for about ten minutes is perfect.  Much is made about treating your plants gently and carefully: controlling PH, CO2, humidity, and temperature.  Rather than obsess about this, I’ve found the reality to be that marijuana is a weed….it takes quite a bit to kill it.  One caution on nutrients, don’t add the first round until two weeks after you’ve started your clones in the vegetation stage. 

A final word about lighting.  Lighting is critical.  You can use silver halide and other high tech lights, or you can use CFL fluorescent lights.  They all work just fine.   Vegetation spectrum is in the 6000 Kelvin range and the Flower Spectrum is in the 2700 Kelvin range.  It’s good to include both spectrums with the accent on whichever spectrum matches the stage your marijuana grow is at.

Total time from clone to harvest is somewhere around 12 weeks.  Add another week or two to dry and cure your crop. Yield is around four to six ounces per plant.

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