Worms and plants have fed off one another in symbiotic harmony for billions of years. Worms consume dead plant matter, and in doing so, they excrete a natural fertilizer known as castings. That worm castings - actually worm poop - provide food for the plants that, in turn, will eventually become more dead plant matter for the worms.

Scientists and farmers have long known that worms contribute to the soil's ability to support plant life. But it was only relatively recently, in 1881, that the famous naturalist Charles Darwin seriously studied the role worms play in generating fertile soil. He wanted to solve the mystery of where humus on top of the soils came from and where it went.

Darwin counted how many worms were in his garden and calculated there was an average of 53,767 worms per acre. He then estimated that more than ten tons of dry earth per acre annually passed through the earthworm's digestive system. That meant the worms treated practically all topsoil every few years. Darwin asserted that in a fertile field well populated with earthworms, they would produce an inch of new topsoil every five years by devouring and recycling all sorts of organic matter, such as leaves and weed seeds. The worms also destroyed the larvae of many noxious insects.

Worm poop is truly an ideal, natural fertilizer. It is rich in nitrate nitrogen, phosphorus and potassium.

Today, thanks to a revolutionary new process pioneered by TerraCycle Inc., all the benefits of solid worm poop are now available in convenient, ready-to-spray, liquefied form. TerraCycle Plant Food™ can be sprayed on the leaves of plants, and poured onto their soil. The plants absorb the liquefied worm poop and its nourishing nutrients much quicker and easier than they do from the dry form. Darwin would likely be pleased at the latest development in the history of worm poop!