Im doing some landscaping and one of the beds has really sandy soil. when they did it themselfs last year, all plants died. I did a soil test and there nitrogen levels were really low..I should be able to fix that. Also the PH level was a lil on the higher side (PH 7.5-8). Any suggestions on plant combinations that can thrive in this kind of soil in Arkansas heat/sun that will look good?? Thanks!!