raised and groomed to outperform other red worms composting decomposing organic matter soil aeration Description: Our redworms are bed run (grown outdoors in long rows). Each red worm ingests its weight in organic matter every 24 hours. Its intricate digestive tract makes it possible for the earthworms to excrete highly nutritious fertilizer known as castings. Product information: Our red worms are packaged in breathable containers mixed with food and moisture. The earthworms vary in size; packages include eggs, new born worms and adults. Redworms reach mature size in 6 to 12 months.