We planted an upside down tomato last year. It got neglected and buggy and had blossom end rot. We are planting the tomatoes this year with a soaker hose under the black plastic. The heat from the plastic is supposed to help them grow bigger and produce more. We'll see.

The square foot garden: We have taken the weed mat out from under the boxes and tilled under them and replaced boxes and soil. That has kept us busy. The weed mat did keep the perrenial weeds and grass from growing through but the boxes needed to be watered every day with such shallow roots in our dry Summer heat (Utah).

In a more humid climate I'll bet the upside down tomatoes would do better too.

May the Lord bless our gardens!!!!!