May 5 to 11 is International Compost Week, building awareness of composting, and the importance of "feeding the soil."

What better time for Cathy Nesbitt, founder of Cathy's Crawly Composters, to look back on her 12 years of promoting vermicomposting.

Vermicomposting uses red wiggler worms to transform organic waste - from coffee grounds to eggshells and orange peels - into gardener's "black gold," rich compost and worm castings.