I've never heard of this before so I'll be very curious to see what others have to say.  
 I don't have a picture right now, but my parents have an ornamental bed near a neighbor's fairly large hackberry.
 There's a golden currant there plus some Virginia creeper, irises, phlox, and lots of northern sea oats grass.  They did plant a small Japanese maple that died quickly but I always thought it was because it's dry as well. (There's a large sliver maple nearby too so when any kind of drought strikes, everything goes bone dry.)
 Oh, and the soil is sandy.  It's just a harsh place.  Also, their vegetable garden is another twenty feet farther out and that side of the garden is maybe less productive, but again I always assumed it was the shade and roots.  I'll try and remember to take a picture some time.