The histories of four Philadelphia community gardens and the stories of the people who take care of them are the latest focus of the "Gritty & Green" podcast, which explores urban gardening and sustainability.

A new mini-series, "We Are Seeds," highlights the way different neighborhoods are addressing food insecurity, building social networks and reshaping what sustainable living looks like in Philadelphia. It features Sanctuary Farm in North Philly, Holly Street Neighbors Garden in West Powelton, Glenwood Green Acres in Glenwood and Klean Kensington in Kensington. MORE: Energy advocates, PGW reach deal to lower proposed increases to utility bills

Meredith Nutting, a Master Gardener who has lived in Philadelphia for 14 years, began the " Gritty & Green " podcast two years ago t

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