Wilmer Worm's Premium PEAT 30mm Seed Starter Pellets (36-Count). Wilmer Worm's grow pellets are dried and compressed in a secure fine mesh netting. Just add water and let pellets expand to form pot and soil all in one. Canadian sphagnum peat moss provides a rich, high quality growth environment. Transplant directly into the ground or larger containers minimizing transplant shock and root damage. Wilmer's PEAT pellets are universal and fit all grow pellet greenhouse kits of their size and are thickly bound with their own natural fibers which makes them sturdy. The best part is that you can plant them directly into a planter, garden or potting soil. There is no need to remove the plant which means you minimize transplant shock. Just place in water for 5-minutes to 10-minutes and they expand into a self contained soil net ready to grow. After your seedlings sprout, drop the netted container directly into the ground or planter pot. No mess, no fuss. These are the best and easiest way to start plants.