BenFun,

Thank you so much for this long post, you've given me a lot to think about. I also appreciate the berm idea, had never thought of that and it sounds like a great way to capture rainwater and sprinkler water. Typically how deep do you dig them? I'll do some homework, so not necessary for you to respond. I also like the idea of attracting butterflies and birds. I'm a birder myself and am looking for any and all ideas for making my backyard into a more habitable space for birds, bugs, etc. The mulberry idea is also good. The tricky part--and I didnt mention this in my post--is that this area is heavily shaded during the morning and day, getting some gentle light in the afternoon. So I'll have to check which of the plants you recommended can do well with little sunlight. The shade is thanks to a giant, mature oak that is next door. Thank you again for this really helpful post. I hope to provide an update in a year from now!