Hi Captain, I think the Rachio 3 can do what you are attempting. I recently installed one to do 6 zones, 3 lawn only, 2 shrubs only and 1 with both lawn and shrubs (I use the shrubs setting for that zone). I set it up to water on my two allotted days, finish before sunrise and do a pattern as follows: 4 mins on, 30 off, 4 on, 30 off, 4 on, then stop. (You can vary those times for each zone.) Also live in TX north of you. The WI feature estimates how much moisture is in the soil and those estimates show the differences between lawn and shrubs even though the soil for each zone is the same. (If you have different soil in different zones, you can select that as you set up each zone.) I used the Flex Daily schedule to do all this, but I had to call the customer service to help me figure out how to do it. The original agent did not have enough knowledge to help me, but we scheduled a specific call back time for an expert to call me back. He did, we worked it all out and I could not be happier. Once you figure out how to set the program, it is truly set and forget. I must admit that the program is not intuitive…at least not to me. But the customer service folks were very patient with me and my explanations and we figured out how to use all the features AND take advantage of the WI feature. For example, when the schedule was set to run the system the next day. I was sitting at my computer when a downpour happened. I checked my Rachio program a short time later and it had recorded 110% moisture level in all my zones and moved the next run day out into the future. Frankly, because of all our rain lately, the WI has skipped what would have been several wasted sprinklings. But, to me, that is a plus! I think you will be happy with your purchase, if you buy a Rachio 3. Be sure that you have good a wi-fi signal to wherever you will need to install it. But do not be hesitant to call the customer service guys to get them to help walk you through how to program it. Also there are helpful videos on the website, but I did not see them until after I was getting frustrated trying to follow their simplistic quick start manual. They should improve how the program walks you through set up. However, I am a happy camper now and I am convinced this purchase will pay for itself in one summer alone. Hope this helps.