Do your trenching before you put in fences and shrubs because the trencher is awkward to use. Sprinklers by Nelson come in three spray patterns - circular, square and narrow strip. This circular one covers up to a 30-foot diameter. It has no moving parts to break and has a rustproof aluminum face. Prices vary according to brands, available at many local hardware stores and garden centers.
Hoses hanging outdoors usually look unsightly.
Ames reels in tidiness with a hose tote case that can be hung or left to sit so you can pick it up and take it where needed. It tells you what questions to ask yourself about buying PVC pipe, the plastic pipe used for underground watering systems, and gives many photos that show how to design and glue together you own system. Diagrams show you pipe joints and tell you how to create multi-line bubbler assemblies. For any underground system, consider installing a computerized control panel that allows you to easily set times and rotations.