Cover crops by the Bay.
Well, another sorry tomato season here in sunny San Francisco!! Think I'm gonna give the dirt a rest until spring and just seed with some low maintenance cover crop. My beds here in Noe Valley are planter boxes installed on the concrete slab, approx 12-18" deep. Suggestions for seedings that will give some color, improve soil, attract bees/butterflies etc. Edible a plus but not necessary. Thanks.