A portable irrigation device and a method of use are disclosed herein. The disclosed irrigation device generally comprises an adapter configured to be connected to a water source; a pressure regulation device connected to said adapter; segments of fluid supply tubing in fluid communication with said pressure regulation device and configured to form two approximately concentric circles, wherein said two circles form an outer circle and an inner circle, and wherein said outer circle is in fluid communication with said inner circle via one or more radial segments of fluid supply tubing connecting said outer circle to said inner circle; and a plurality of emitter elements disposed along said segments of fluid supply tubing at predetermined intervals. The disclosed irrigation device may be utilized to water any plant in need of targeted irrigation, including shallow-rooted plants such as flowers and dry areas of grass in lawns, as well as deep-rooted plants such as shrubs and trees.