Epsom/Andrews Salts Question

Discussion in 'Harvesting and Processing Marijuana' started by killaman, Jan 11, 2015.

  1. yo blades. Can I use Andrews salts (basically the same as Epsom (high mg and acidic)) right until harvest or should I flush first? My plants have a mg deficiency (see other post) and I use it to bring the ph down too
    Thanks ya'll

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  2. Bump

    Sent from my C5303 using Grasscity Forum mobile app
     
  3. Not the same thing. Took me 12 seconds to look that up.
     
    Epsom is magnesium sulfate. That Andrews salts also has sodium bicarbonate - which is baking soda.
     
    So don't use it unless you want your soil to foam and become a block of glue.
     
    A 3 lb bag of Epsom is $3 or $4 at any pharmacy. 
     

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