I would like to set up a timer-based watering system for my mother's garden (see figure below). I plan to have the timer installed on the main water supply line, which then branches via underground hoses that have sprinklers installed at intervals.
The problem with this approach is that I cannot account for Remote Patches A and C (not sure if the term "island" is appropriate here) without resorting to digging up some of the front yard paved bricks to install the water lines.
I guess an on-the-ground hose would be borderline acceptable for Remote Patch C, but the main gate makes things difficult with Remote Patch A.
Is there a way to water the remote patches without having to resort to laying underground lines/removing paved bricks across the gate? I'm open to all suggestions.