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Thread: So...perlite is no good.

  1. #17

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    My moms always bugging me about that I guess I emberass her
    [img]http://home.**********.com/users/pondboy/Neps/Neps%20sig..JPG[/img]

  2. #18

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    OK, this-is-bad. I have never washed my peat before [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_k_ani_32.gif[/img] I know...don't scream at me...

    Perlite leaches toxic chemicals and absorbs salts? Why didn't I know all this in the first place...I am never going to use it again...

    Maybe that is the reason some of my seeds wouldn't germinate...could have decreased the health of my plants as well holy cow...

  3. #19
    Tony Paroubek's Avatar
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    I wish this perlite leaching toxic chemicals would die a fast death already...

    Horticultural perlite is safe and does not leach toxic chemicals. It MUST be horticultural perlite. If you buy cheap industrial perlite then it could have all sorts of stuff in it.. but then so would just about any potting mix you got from a chemical factory.

    Perlite does not absorb salts any more than any other item in the potting mix. Perlite acts like little sponges so any salts in the water will usually end up in the perlite because it pulls the water to itself and evaporates the water off the surface (high surface area = increased evaporation). Which leaves salts behind. If your using quality potting mix and water then the salt issue is mute since there should not be much minerals dissolved for the perlite to concentrate. By the way.. it only happens to the perlite that is sitting on the surface of the mix where it is exposed to air.

    You don't have to wash your peat. I don't.. Sphagnum peat by nature should be fairly pure. After all if the water the peat was soaking in was bad then the sphagnum wouldn't be growing there in the first place.

    Tony
    Is that a Nepenthes in your pocket or you just happy to see me?

  4. #20
    Nepenthes Specialist nepenthes gracilis's Avatar
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    I only wash out my peat to get it to "run clean" note that when it is dry, you can wash it and the runoff water will be extremely murky. Running water through it I 'think' helps to cleanse it a little. Of course, all of the water it will be recieving from our almost daily watering schedule will certainly rinse it!

  5. #21

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    I have never rinsed my peat and use perlite in most of my mixes. Never had a problem with either and my plants generally grow fantastically.

  6. #22

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    Well I wash my peat and swear by it. It has helped my growth dramatically,of course I guess it all depends on your bag of peat
    [img]http://home.**********.com/users/pondboy/Neps/Neps%20sig..JPG[/img]

  7. #23

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    You know...I wasn't expecting to light up such a passionate exchange.... take it easy guys. You're all doing your best.
    If the dragon is bigger than his treasure, it's not worth the effort.

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  8. #24
    It's been one of dem days BigCarnivourKid's Avatar
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    This is the first and only year that I have washed my peat. I found it was contaminated with timed release fertilizer pellets. Not many but enough that it cost me a couple of plants before I figured out what the problem was. So much for truth in packaging.
    ---Steve Allinger---

    How come chicken fingers are bigger than buffalo wings?

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