How many do you have? Are they grouped close together are are they spread out over a large area?

I have a total of 70-80 potted fruit trees and flowering plants of varied sizes and right now are spread apart depending on their light needs. I could group them together and schedule the sprinkler to automatically turn on every other day and have couple of friends come to water the plants one day a week but the fruiting guava trees needs watering at least twice daily. On hot days with over 90F, I water the guavas and soursop 3X. If I don't water twice a day the leaves start to droop. So I need some ideas to solve this problem. Any help will be much appreciated.

Wow you must have an extensive sprinkler and watering system. Did you do it yourself or did you have someone do it for you. What products did you use and where did you get it. I am interested in learning what is out there that could help with my problem.

When I bought the place there was already an irrigation system. Since then I've modified, rearranged and replaced things. Added new parts and extended it. It's easy enough to get the parts to set something up. Then you can use your own design/plans to suit your situation.

You basically need a controller which you set with the time and frequency when different sections of the system come on. Then you need to connect it to your water supply. If you're on town water that's pretty simple. The way you run the irrigation lines around to your plants depends on what you want, how you want it to look. Some people don't like the sight of irrigation lines running around all over the ground. You can bury them (but not easily if it's on a concrete slab).

There are different sizes of irrigation line, here it's black "polypipe". Probably the same thing where you are. There are joiners and branches. Worth putting clamps on joins to prevent them accidentally coming adrift while you're away. You can get drippers, sprinklers, or spray jets to mist water. Check out the gardening sections of your big stores. Most of the staff should be able to give you advice on it and what's available.

My system comes on at 5:00AM and runs to 7:00AM. That gives the water a chance to seep in while evaporation rate is at its lowest and before the sun comes up. The advantage of the automated system is that it frees up your time but also allows watering at less convenient times (like when you'd prefer to be sleeping).

I will have to call a DIY friend of mine. It seems like a big project to do but the idea sure will help with my problem. Thank you for your input. Now I have to think about what to do with them comes winter time.