Seed Starter

Step 4 Notch the bottles

In order for the top portion to fit snugly into the bottom portion, make a 1/2 to 3/4 inch in length triangular notch on each cut side of the top portion of the bottle. If the bottle is made of thicker plastic, make the notches wider. If dealing with a flimsier plastic (soda bottle), a very thin notch or slot can be made.