Miracle Grow and Cannabis...Good or Not??

[Pawtsmokkirr]

Hello everyone, first time grower here and Ive got a 1 plant that ive started out with and it seems to be doing very well. Its into its 2nd week of flowering now. 12/12 light cycle with 2- 120 watt 5000k, 1250 lumens CFL's I started out on the veggie cycle using Miracle Grow water soluable 18-18-21, deluted very well in water. I did experience just a little bit of burning on a few fan leaves on the edges due to me spraying the mixture directly on the leaves and then setting it out in full sun all day. It has over come the burning and is doing very well now. Just the other day I used Miracle Grow Bloom Booster 15-30-15 now during the flowering cycle. The main bud at the top is really starting to take off and new buds are forming down below, and so far, no new burning..
I have heard from a few people that using Miracle Grow is not good for growing Cannabis and that it can also lower the THC in the buds. Is this info really true?? Others have told me that its OK to use as long as you delute it very well and not to mix it too strong. My buds are really starting to get a nice fresh smell to them, and I just dont want to ruin my 1st grow by not knowing if what im using is good or not.....any suggestions, comments??
Thanks!:thumbsup:

Pawtsmokkirr Reviewed by Pawtsmokkirr on 07-04-2010. Miracle Grow and Cannabis...Good or Not?? Hello everyone, first time grower here and Ive got a 1 plant that ive started out with and it seems to be doing very well. Its into its 2nd week of flowering now. 12/12 light cycle with 2- 120 watt 5000k, 1250 lumens CFL's I started out on the veggie cycle using Miracle Grow water soluable 18-18-21, deluted very well in water. I did experience just a little bit of burning on a few fan leaves on the edges due to me spraying the mixture directly on the leaves and then setting it out in full sun Rating: 5

[Dutch Pimp]

I've used MG since 2005...I'm use to it

[leadmagnet]

I've had some success with MG soil in the past but with that time release crap you're creating limitations for yourself. A flush could easily kill off yer girl too. I generally shy away from it. I experimented with the 6 month release recently and it killed off all my girls three and four weeks into flower. Way bad shit, man. Way bad shit.

[Pawtsmokkirr]

I've had some success with MG soil in the past but with that time release crap you're creating limitations for yourself. A flush could easily kill off yer girl too. I generally shy away from it. I experimented with the 6 month release recently and it killed off all my girls three and four weeks into flower. Way bad shit, man. Way bad shit.

How much were u using?? Mine isnt the time release, its the water soluable mixture. I have really deluted it to a very weak mixture of Bloom Booster and the main bud is really taking off. I feed it once a week and plain water in between. Just not sure if its gonna end up affecting the taste of the buds, as I plan to stop feeding all together a week or 2 before I chop her down...:smokin:

[leadmagnet]

The pros and cons of using the time release soil verses the additives is an apples/oranges kind of thing.

You'll find the additives issues far more fixable than using that crummy soil. A lot of folks even like the MG additives but then you get into the heavy metals verses quality organic arguments and the discussion usually drops off into the deep end about then. It's a call you're going to have to make according to your own priorities.

Just stay the hell away from that god dang MG six month soil unless you want a good rump ramming.

[Rusty Trichome]

I've never had a problem with the 12-4-8 MG nutrients, (which I use in emergencies) and no...there's no evidence it lowers quality or effects. Some folks try to make a name for themselves by slamming crap they know nothing about, and parroting others misconceptions. They are usually the ones that never back their statements with proof, and blame their tools for crappy results. The nursery that supplies my potting soil just moved out-of-town, so am going with MG or Supersoil. It's what's available, and I've worked with both before. No big deal, except the MG and Supersoil are almost double the price of what I was using.

Sneak-up on the maximum to acclimate the young plants to the nutrients. Best to start with 1/4 tsp:gal for first week or two, and watch for results. A full dose is 1/2 tsp:gallon of water per week.
Give the soil a good flush a week or ten days before switching to 12/12. (you aren't flushing the plant, you're flushing the excess nutrients, salts, additives and crap from the soil)
If your soil is pre-fertilized, you'll have to make a judgement call with when to start the nutrients, and how much to offer the plants for the first couple of applications. It's ok to underfertilize for a few times till you get used to the dilution rates, but overdosing can kill a seedling or freshly-rooted clone overnight.

I do agree with the warning to stay away from the MG 6 month soil though. You'll want more control than the 6 month mix allows.

Quite a bit of nitrogen in the flowering mix, and admittedly, I'm curious of what the results will show.

[leadmagnet]

Some folks try to make a name for themselves by slamming crap they know nothing about, and parroting others misconceptions. They are usually the ones that never back their statements with proof, and blame their tools for crappy results.

I sure as hell hope you're not referring to me genius.

[Calif1223]

I have heard from a few people that using Miracle Grow is not good for growing Cannabis and that it can also lower the THC in the buds. Is this info really true??

Your right on, using Miracle Grow does indeed maintain the plants but the resources in Miracle Grow restrict the amount of bud it can grow. Best to stay organic and use chicken manure, bat guano, balance the nitrate, etc...

[Rusty Trichome]

I sure as hell hope you're not referring to me genius.

Why...guilty conscience? No names were mentioned, but if the description fits, then yes...you are one of the members I was taking about. :thumbsup:

[dobiepaq]

hey pawt
I've only used MG soil, but its the "Moisture Control" pkg. its NPK is .21/.07/.14...now there is some thing I dont like, it has twigs & pieces of bark but thats what I started with 4 yrs ago before I put them in the ground & after loseing trees to hurricanes & floods, I grow out of pots now... I know it can be done & I do not have a green thumb!... hell if it was a plant & i touched it it will most certainly die... I also use perlite in the MG soil.
I also use MG nutes, the same ones you are useing along w/superthrive...

here is a pic of the clones that i kept in my kitchen during the winter in MG fed by MG under house hold floro lights..
if you need any info let me know... but I am a beginner like you...
M.