The ugly little garden has gotten off to a rough start. We installed soaker hoses in each bin, and I turned them on. I planned to come back an hour later and turn them off.
Planting containers full of annuals up at the house distracted me, and I didn’t return to the vegetable bins for five hours.
All three bins were flooded. Despite having drainage holes, the amount of water coming in was too much for the bins to drain. The water and soil was flowing over the side of each container and the pumpkin bin had begun to tilt and slide down the hill. Plus as the water left it took soil, so I was left with gaping holes in the planter and plants that had migrated to new positions in the bins.
The lesson I gathered from my “experienced” gardening friends is “get a timer to turn on and off the flow of water,” because despite my best intentions, I will forget to do it.