JD Garden, Hillsborough
Traditional Deck, San Francisco
Organic soil amendments are cultivated into the soil. Since their nutrients are released by soil microbes, they need to be mixed into the soil so they're in contact with the soil food web. These organic fertilizers are built into the soil at the start of the season, and release over time--no need for additional fertilizers, it's like winding up a clock.
Photo by Steve Masley
elevated plant / food gardens