So mid-project, we had the idea to grab stuff from our recycling bin. Beer bottles, yogurt containers, and even a little leftover coconut fiber from another weekend garden project quickly became filler at the bottom of our planters.
The larger items (beer bottles) filled up the bottom six inches or so of our largest pot, and we filled in soil around it. In the smaller pots, we crushed the yogurt containers and then filled in dirt.
Not only did we save our precious potting mix, but we also created better drainage for our plants and reused some of our recyclables!
(Re-edited from a post originally published on 8.17.2010 - CM)
(Images: Amber Byfield)