This sprayer has an adjustable full circle umbrella pattern. When planting young trees or larger perennials the wetting area can be turned down. As the plants grow, the Spectrum™ spray pattern can be enlarged up to 5 1/2 feet in radius (11' diameter). There are no moving parts to be damaged and the top can be easily removed for cleaning. The Spectrum™ on a stake comes with a break off transfer barb.