Re-use old tyres available for free on Trademe to plant trees in if you have waterlogged soil. Cut the centre out using a short bladed strong knife. The roots love the warmth and seem to grow well. I use 4wd tyres that have fairly soft rubber easier to cut. You stack two tyres on each other and fill with dirt you cut the part out that would usually hold water if you left it in so in effect you just have a rubber wall around the dirt.
28
Jul