User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 8 of 13

Thread: pH

  1. #1
    joe002's Avatar
    Join Date
    Dec 2006
    Location
    Phoenix, AZ
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Question pH

    Lately Iíve been wondering how important it is to worry about the pH of the soil/water for VFTs, Sarracenia and Drosera. I recently measured the pH of some locally purchased RO water (6.78), distilled water from the local grocery store (4.90), and a fresh mix of unwashed Peat Moss (5.60). Iíve read a wide variety of pH recommendations, and many recommendations seem to be around a pH of 4.5. I can easily lower the pH of my water using Muriatic (Hydrochloric) Acid (pool acid), but is it a good/bad/indifferent idea?

  2. #2
    Stay chooned in for more! Clint's Avatar
    Join Date
    Apr 2003
    Location
    Metro Atlanta Area
    Posts
    9,681
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It's perfectly fine

    I'd reccomend against using strong acids. If you have to use acids, vinegar is OK but you don't need it.

  3. #3
    joe002's Avatar
    Join Date
    Dec 2006
    Location
    Phoenix, AZ
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I mentioned Muriatic Acid because I have a pool and I'm constantly adding it to my pool water to keep the pH down.

    When I used RO to wash the Peat Moss to get it down to around 50 ppm (at a pH of 5.60 it was at 102 ppm) the pH rose to around 6.0, which seems to be a bit high.

  4. #4
    FarmerDave's Avatar
    Join Date
    Jul 2006
    Location
    Tallahassee, FL
    Posts
    1,355
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    use a deluted vinegar solution if it really worries you.
    personally I doesn't really matter what the ppm of the Peat is when you first get it, because if you're growing your plants outside then the rain will wash most of the nutrients out.

  5. #5
    joe002's Avatar
    Join Date
    Dec 2006
    Location
    Phoenix, AZ
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    During the growing season my plants are inside - we donít get a lot of rain in the summer and it gets too hot in the full sun. I do use either RO or distilled water (our tap water is about 700 ppm), so I guess as you suggest by the end of the growing season most of the minerals are washed out, so the initial washing isnít required for me.

  6. #6
    Moderator Alexis's Avatar
    Join Date
    Sep 2001
    Location
    Manchester, UK
    Posts
    956
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Peat is acidic, as is rainwater and distilled water. That's all that matters - trying to reduce the pH is a pointless exercise.

  7. #7
    joe002's Avatar
    Join Date
    Dec 2006
    Location
    Phoenix, AZ
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I didn’t realize that distilled water was acidic until I tested it (I figured it would just be 7.0). If I exclusively use distilled water with the Peat Moss, then yeah I won’t have to worry about the pH because it starts out acidic, and the distilled water will keep it there. Unfortunately, out here distilled water is 4 times the cost of RO water, and the RO water is just barely acidic, so if I only use RO water then the pH will slowly rise (which I saw when I washed the Peat a few times). If CPs grow just as well in soil with a pH of 6.0+ as they do in soil with a pH of 4.5then I guess pH doesn’t matter.

  8. #8
    It's been one of dem days BigCarnivourKid's Avatar
    Join Date
    Jun 2002
    Location
    I live in Chaffee County, Colorado, USA
    Posts
    3,673
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Sphagnum moss & pH

    If you can get live sphagnum moss to grow in your pots, it will help keep the peat acidic. Sphagnum moss has the ability to take up cations and release hydrogen ions.

    More info at http://www.answers.com/topic/sphagnum
    ---Steve Allinger---

    How come chicken fingers are bigger than buffalo wings?

    My Grow List

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •