I can't keep trees in my back yard

I've lived in this house for 17 years.  In that time I have had  7 different trees in the back yard.  Five have died for various reasons.  One is on its last leg.

Currently I have a Chinaberry tree that is struggling to stay alive.  Every Spring a different limb is dead.  But it still sprouts leaves so I don't want to cut it down.

I also have a flourishing Palo Verde tree.  That one makes me nervous.  It seems to have no problems.

The flowering cherry was the first to die.  The symptoms were that of Texas Root Rot.  So the replacement tree was moved 15 feet further east.

That one, an Acacia, didn't do badly.  Until it was uprooted by a microburst.

Planted with it was a second Acacia.  Oddly, they seemed to be different types even though they were bought at the same time and at the same nursery.

That Acacia got struck by lightning and never really recovered, succumbing finally to some sort of beetle infestation.

The lightening-struck Acacia was replaced by a fast-growing Ash.  That was a badly pruned specimen and resulted in a second, free Ash planted near the first.  They lasted less than two years, seemed to be flourishing.  Then both died simultaneously within weeks of the Spring growing cycle.

So I decided to go metal.  I bought a six foot tall spinner to decorate my back yard.  It doesn't give off much shade, but at least it's pretty.

And it's cool to watch.

Maybe I need more metal art?