AAAAAAAAAARGH!!!

I'm home this weekend after 3 solid weeks of being away from the home & garden, and this is what I find:
A deck populated with plants in various (advanced) stages of death.
If you care to, you can compare with an earlier picture of the deck, with living, happy plants.
The boy insisted that he watered all the plants every other day "with two whole watering cans of water!"
Yes, that's two *gallon* sized watering cans of water for THE WHOLE DECK's worth of plants. Every other day. In sweltering 90+ degree heat. The tomato plant alone needed that.
Well, at least he tried. I think he's secretly plotting the downfall of my garden so I'll py more attention to him. First with the deck stain, now with the dessication.