Bottomless Pots for OG ?
We live in an all-sand environment (sand dunes near Lake Michigan). I was thinking that, rather than replace large areas of sand with a soil mix, I could sink cylydrical "bottomless pots" into the sand and then make the interiors a soil mixture.
Since we like OG's like Miscanthus Senensis gracimillus and morning light as well as Panicum Virgatum "Heavy Metal" these cylinders would have a diameter of, maybe, three feet.
I would think that the interior of the cylinder would best be smooth so that dividing the grasses over the years might be easier.
However, in searching for ideas on what to use for these bottomless pots, the only thing that comes to mind is that heavy, black, corrugated drain tile.
Any other suggestions on what I might use and where I might purchase it?