How do I replace pressure treated wood frames in my flower gardens?

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I have 30' of zig zag flower gardens made of pressure treated lumber. What's the best way to replace the timbers without destroying my gardens?
q how do i replace pressure treated wood frames in my flower gardens
  6 answers
  • Brenda Brenda on Apr 03, 2017
    Very pretty by the way. I would wait till everything is dormant then replace the timbers on at a time starting with the one at the bottom. This may be tricky but my neighbor did it. If its just the color you don't like wait till they have gone dormant and power wash.
  • Debbie Debbie on Apr 05, 2017
    Check Home Depot or Lowes for PVC outdoor trim pieces.
    Maybe replace or cover with the above.
    Comes in white, used on outside of houses, doors, etc....so weatherproof.
  • Lgr9562247 Lgr9562247 on Apr 06, 2017
    To begin, explain why you want to replace them. ie: damage, color, etc. There may be a far easier solution.
    • Roseann Roseann on Mar 17, 2018
      Deteriorating so they need to be replaced. The bottom row runs along a drainage ditch. My area is blessed with a lot of ground water. I’m interested in your ideas. Thank you for asking.
  • Thomas Contino Thomas Contino on Apr 08, 2017
    You might want to replace pressure treated lumber with blocks or some other stone product because the chemicals in the pressure-treated wood probably leach into your garden. Which in turn go into your plants. You might be eating poison. Check into it
    • Roseann Roseann on Mar 17, 2018
      I worked in the lumber industry before my gardens and kept edibles out of these beds. These have been strictly flowers and shrubs.
      Good point to make for those who might not know. Thank you
  • A A on Mar 17, 2018
    Actually PT lumber in residential use has not contained arsenic for at least a decade. It's only used in commercial lumber (like for bridges, etc.). Regardless, you'll see tons of Yay & Nay articles on the internet. I hope these help.


  • Roseann Roseann on Mar 17, 2018
    Thank you. I’ve had them in my gardens since 2004 so they’ve started to deteriorat.
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