How to setup drip line zones

My shrubs and trees are in three zones, front shrubs (4.2 gpm), front trees (1.3 gpm), and back shrubs (1.2 gpm). These are drip lines with a variable number of emitters of different rates. Besides the flow rate for each zone from calibration, I can count the number of emitters and the flow rates of each emitter. What other information do I need to ensure adequate watering of these zones? Area, root depth, and all the other parameters are beyond my conprehension.

There are a lot of discussions around using Rachio with drip. There isn’t an easy/obvious solution since Rachio from the beginning was designed to help with watering of lawns. I would recommend starting with this recent/ongoing threads (and from it you can follow into other discussions):