Hydrated lime? Plz help.. PH to high

Discussion in 'Marijuana Plant Problems' started by geronamo, Sep 18, 2008.

  1.  
    geronamo

    geronamo Well-Known Member

    Ok, well Im growing in soil and my ph is high 7s maybe even 8! I was told hydrated lime is the answer... Is it? Well I bought some anyway, but I dont know how much to give my plants. They range from 8 - 10inches tall and are in 10 litre pots.

    How much should I give each plant? Do I put it str8 in the soil or mix it in water? Check my grow for more info...
  2.  
    CustomHydro

    CustomHydro Well-Known Member

    Don't use lime!!!!! It will raise the PH!!!!!!! I don't know what I was thinking last night, but I woke up this morning, and the first thing I did was think.... I FUCKED UP! SORRY! If u used a PH meter u would have found that out all ready.
    Just go to a pet shop and get some PH down. Its only 5 or 6 bux...
  3.  
    E S

    E S New Member

    I think the lime tops out at a pH of 7ish so if if that's the pH already, no harm done. i checked out your journal and see no signs of disease that would lead you to believe there is a problem.
  4.  
    gangjababy

    gangjababy Well-Known Member

    NO NO NO!!! Hydrated lime will fry your plants, I learned that the hard way!. Only use dolomite lime, nut not to lower your pH. If you need to lower it then flush the pot with 3 times the amount of water to the size of the pot with properly pH'd water.
    And ES lime can and will raise your pH too much if used improperly.
  5.  
    CustomHydro

    CustomHydro Well-Known Member

    Thanks for that, I didn't know that about Hydrated lime. I know they use it on grass and they say even on that it is hazardous as hell. I really hope this guy checks back... He sounds like me, and I would have said fuck this I'm not waiting for anyone, I will figure it out. Then a day or 2 later I would be on here cryin about my plants being torched:sad:...
  6.  
    E S

    E S New Member

    Hey man, I never said it can't/wouldn't. What I did say was, "I think the lime tops out at a pH of 7ish..." For the record, the pH of hydrated lime = 12-12.5

    Aside from pH, I think hydrated lime is faster-acting and shorter-lasting than dolomite. If plants are getting burned, gotta use less.

    I'm with Ganjababy, if you have a choice, use the dolomite.
  7.  
    bobman

    bobman Well-Known Member

    if the plants look bad than its better to just get better soil and transplant. trying to change things aftr the fact is a pain in the ass. ur ph may just be off because of ur water. if u have good drainage then u should be ok. if ur plants look good just wait and see.
  8.  
    gangjababy

    gangjababy Well-Known Member

    it's not necessary to transplant to correct a problem, this will further stress an ailing plant! Just flush and the problem will be corrected and water with properly ph'd water from now on, 6.5 to 7.
  9.  
    bobman

    bobman Well-Known Member

    agree with flush but IF u have bad soil a flush is not going to help in the long run. better to correct a problem at the root. really not even sure if the plants are in trouble from the description.
  10.  
    gangjababy

    gangjababy Well-Known Member

    whta do you mean "bad soil"? when you flush you do correct the problem at the roots!
  11.  
    bobman

    bobman Well-Known Member

    not if the soil is shit
  12.  
    bobman

    bobman Well-Known Member

    no flushing does not correct ph problems. if u have soil that is bad nothing is going to correct it.
  13.  
    gangjababy

    gangjababy Well-Known Member

    again, what do you mean "if the soil is bad"?
  14.  
    bobman

    bobman Well-Known Member

    bad drainage or cheap. mostly bad drainage.

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