I made this seed-starting table today. The table surface is 27″ x 48″ and it has two two-lamp 48″ fluorescent fixtures, each with one warm white and one cool white bulb, and it’s in front of a nice South-facing window.
I want to put plastic over it to hold in heat and humidity, or possibly one of those silver-lined space blankets or plastic tarps to also bounce the sunlight around in there and make it really really bright. Might also want to get one of those warming mats for under the plants.
It would better to do this without the fluorescent lamps (to conserve energy, to practice for when there is no electricity), but I think this is one of those instances where the benefits outweigh the costs. If our plants get off to a better start, they will produce more food for us this summer for immediate use and for next winter’s storage.

The cats quickly discovered that it’s an excellent place to catch some sun:
