[Superman]

I planted fifty arborvitae trees a week ago that range from 5-7' in height. One of the best ways to kill these young things is to fail to adequately water them. Starting now of course but particularly through the upcoming summer. I hope to set up an automatic system.

I intend to bring in some mulch (bark, basically) to reduce evaporation. I have hoses and timers but I do not know what type of irrigation lines to use, or what type of dribble-nozzles to use. Hoping for a solution that is cheap and easy to implement.

Please offer your thoughts and suggestions.