Cover crops by the Bay
Another disappointing tomato season here in sunny San Francisco, 2 years in a row. Think I'm gonna give the dirt a rest until spring. Any recommendations on low maintenance seedings that would give some color, improve soil, attract bees/butterflies etc. Edibles a plus but not necessary. I'm in Noe Valley, my planting spaces are boxes on top of concrete slab, approx 12-18" deep. Thanks.