Use a pot 18 inches wide, 10 inches deep

Spring:  Direct sow spinach beet, Misato Rose Asian Radish.  Around mid-spring, add nasturtium around the edges.

Summer:  Plant 2-3 seeds or one transplant of summer squash.

Fall:  Trim back squash in early August, sow mesclun at edges.  Fill in with more mesclun as the squash goes.