One idea I'm taking from this posting will be 2 larger planters made from galvanized steel outdoor trash cans. My local hardware has 20 gallon cans with the following dimensions: 23.25 x 17.25 x 17.25. They're under $20/ea. taxed and out the door. Since they'll flank a stainless grill I'll probably just leave them "au natural" other than the drain holes, soil, and plants. I have plenty of bricks laying around to use for stands.
