But the demand for worms has also seen a spike — more specifically, composting worms — as people dig into gardening. The worms are sold to customers for vermicomposting — composting food waste with the help of worms. Before the pandemic, vermicomposting classes were part of its curriculum. Before the pandemic, vermicomposting classes were part of the garden's class offerings, alongside other types of composting. Gillard agrees that worm castings are very concentrated compost and high in nutrients, but said the right food matters.

Source: CBC News July 18, 2021 11:26 UTC