Start with clean water, soda, or other plastic bottles or milk cartons. Friends, family, and organizations will be happy to save them for you all year just for asking.
Step 1: Cut a plastic bottle in half.
Step 2: Cut an “X” in the lid for drainage.
Step 3: Invert the top half, and fill it with soil.
Step 4: Place the inverted top inside the bottom half.
Step 5: Plant your seed and water the soil.
Seeders can be grouped in shallow boxes or trays.
You can reuse the seeders again and again.