All shade is not equal. Some shady conditions will yield much more produce than others will, while some areas are better left for hostas and moss. Landscapers/gardeners should be familiar with the different types of shade, but should also keep in mind that measuring how much shade your garden gets isn’t always easy.
Please take into account the time of year and the speed in which surrounding plant life grows. For example, in Carlsbad, CA landscapers/gardeners have the ability to grow exotic fruits like guavas in shady spaces. In drier climates planters can experience great success with the golden columbine (Aquilegia chrysantha) which grows in desert canyons and flourishes in gardens with shady exposures. Coral-bells (Heuchera sanguinea) is native to the Southwest and does well in similar situations.