Read at : Danny Lipford
Soda Bottle Seed Starter
Looking for a place to start your seeds? How about in 2-liter plastic bottles? To keep the roots from being exposed to direct sunlight use colored bottles. Measure up 6-inches from the bottom of a 2-liter bottle and make a mark. Placing a rubber band around the bottle on your mark and using it as a guide will ensure an even cut. Cut along the rubber band and detach the top of the bottle. Make a 2 ½” cut in the top piece so that it can be compressed and inserted into the bottom part of the bottle. Invert the top piece into the bottom so the spout becomes a drain Fill the part of the bottle that has the spout with potting mix, and plant your seeds. You might want to insert a piece of paper towel or mesh before you add your potting mix so that the soil does not wash away.