This garden has sandy soil that is perfect for growing carrots.

soil 是名词，意思是"土壤、泥土"，指覆盖在地球表面、能够支持植物生长的矿物质和有机物质的混合物。sandy soil 特指含有大量沙粒的土壤，排水性好，适合胡萝卜等根茎类蔬菜生长。