Added another two banana boxes with a wicking option underneath. Dug down four inches, layed down plastic, sifted the soil I had dug out and put the gravel and rocks onto the plastic. Added a pipe and wood chips, then a perforated sheet on top, then the banana boxes on the top. Put the screened soil into the boxes, voila! – one hour later I have another two spaces for tomatoes! Added more grass mulch around the existing beds (another 30 minutes), and planted a box worth of carrots, hoping that these will mature past their first initial leaves. Four days worth of thirty minutes. Without doing the math, I think I’m back to “par” for the thirty minute challenge.