Well, for starters, this:
This is vitis californica, a native grape, in its fall color. My intention is to plant this along our eastern property line, which is currently defined by a nasty barbed-wire fence (the barbed wire Must Go).
Because we suspect that our property is, geologically speaking, a couple of inches of topsoil and leaf litter over a whole lot of rock, I don't have big plans for digging into the ground to plant things. A vegetable garden - should I be ambitious enough to do one - will be in raised beds, and annual flowers almost certainly in containers.
There is an old and not-very-impressive oak tree in the northeast quadrant that may come down. If we take it down (for the safety of the house, mostly), I'll plant another oak nearby. There are many other trees on the lot, but I like oaks (and so do pretty much all the critters that live in the Sierra).
I do want to add a few trees to the road side of things. Western redbuds and mountain dogwoods will fit right in to the ecosystem, and they'll make a lovely screen for our garage.
There is a peony grower not too far away, and I may not be able to resist putting in a few of those. Because: