Try sedum, or creeping thyme.
My lemon as do great under my lemon as do hens and chicks and chicks and chicks and chicks and false mexican heather.
My lemon as do hens and chicks and false mexican heather.
Under my citrus trees, I have ivy geraniums, as well as herbs: sage, parsley, thyme, oregano, marjoram, rosemary, basil, and I even have a strawberry plant.
Sweet Alyssum is wonderful