Upright irrigation bag

An open face upright irrigation bag for placing around a sapling comprising:

• a first flexible waterproof panel having a peripheral edge joined to a peripheral edge of a second flexible waterproof panel to form a peripheral waterproof seam with said first flexible waterproof panel and said second waterproof panel forming a water deformable compartment therebetween;
• a first set of zipper teeth located on a first portion of the peripheral waterproof seam and a second set of zipper teeth located on a second portion of the peripheral waterproof seam;
• a zipper runner in engagement with said first set of zipper teeth and said second set of zipper teeth for joining the first set of zipper teeth to the second set of zipper teeth to form the irrigation bag into an annulus with said water deformable compartment extending partially around said annulus;
• and
• an emitter for periodically releasing water from the water compartment, said emitter comprising a rigid elbow having a passage with an internal diameter D2 and a flange base secured proximate a lower ground edge of the irrigation bag with the rigid elbow extending at an angle from the base, said emitter having an inlet nozzle with a restricted inlet passage having a diameter D1, said inlet nozzle with said restricted inlet passage cantilevers outward from a larger outlet passage into a portion of the rigid elbow of the emitter wherein an internal diameter D2 of the rigid elbow is larger than an external diameter D1 of the inlet passage so that water and contaminants in the rigid elbow flow toward the restricted inlet passage with the contaminates falling away from the end of the cantilevered restricted inlet passage as the rube irrigation bag emits water that circulates through the rigid elbow and into an open end of the restricted inlet passage in the inlet nozzle in response to a water pressure in the upright irrigation bag.