I admit I do not have a green thumb whatsoever. When I built my last house in 2006, I had a good friend of mine do some simple landscaping for me, and I told her to buy plants that were low maintenance. It so happened that said-good-friend's husband was the one who installed my underground sprinkler systems. So they worked together that the sprinklers would water my perennial plants and I basically had to do nothing to upkeep my rock gardens except prune one of the bushes once a year.
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Now, this new house (new to me anyway) that I moved into has a way more beautiful yard that was professionally groomed and taken care of that has ten, maybe even twenty times more plants and shrubs and trees than my previous house. Again, the water sprinklers are set to water everything, so I wasn't too concerned, but my oh my, I was prepared for the weeds sneaking up in the rock gardens and all the shrubs and rose bushes needing pruned and shaped!
So I have already decided at my house (I want to build again), I hope to find a happy-medium of trees and plants in my new yard. I'm even considering ordered my plants online as it's less expensive than at the local stores. Many online nurseries have quality plants affordable at wholesale prices and ships to all states.