I can't advise you about what to plant , but sandy soil will always benefit from having a large amount of organic matter tilled into it to improve both it's tilth as well as it's fertility . If you contact a local tree trimming service I think you'll find them more than willing to dump their trimmings on your land free of charge . If there is a mushroom farming operation in your area most of them produce enormous amounts of compost which they dump after it is no longer useful to them . The charge for a 16 ton truckload is usually around $100 delivered , which for reference will cover an area of 1,000 square feet to a depth of 10 feet . With sandy soil there really is no such thing as too much organic matter , it improves tilth , water holding , drainage , and feeding . Soil that's rich in organic matter is also easier to balance the Ph . If you haven't planted yet then look into these suggestions first . Every truckload of free plant food is one less season you'll have to fertilize .