I am trying to plan a watering system for new beds I created last spring and am contemplating a number of different options. The beds have already been planted with small trees and shrubs (river birch, viburnum, dogwood, firs, junipers, hydrangeas, oaks, maples, redbuds etc) and I will be adding perennials this spring to fill in. The beds are rather large (see pictures below) and will be evolving over the next few years. I am wondering what irrigation method is best to keep them healthy. My options are:
1. Drip system (buried under mulch)using emitters placed in the root zone of each plant. This is the most efficient method and I like the fact that it reduces the likelihood of disease. However, I've read that emitters clog easily, and it's not easy to detect issues.
2. Drip system using microsprays/misters. This system isn't quite as efficent in water use and could cause more disease issues. However, since the microsprayers/misters are above ground, clogging issues are easier to detect. Issues with leaks at connections on the drip tubing could still be an issue,.
3. Regular sprinkler system (PVC piped) using spray heads. This system uses the most water and could create more disease issues. However, issues are easy to see and such a system seems less susceptible to leaking issues.
So, based upon my situation, and if money spent on installation wasn't an issue, which system would work best for me? Thanks in advance!