Reply To: Best vine for full sun trained on wire on concrete wall

[Les Ballard]

My edit didn’t work.  Added features may have an overflow and so should the planting base some inches up maybe being led to a drain with the 2 small tubes initially put in a single piece of hose.  Both may be pricked with wire back up them occasionally to remove any clogging.    

The planting base can be shielded from the sun by a bent raked lip of a few inches to catch rain but exclude sun.  Gravel near the drain hole should filter water well enough.  The base can also comprise a garden seat for casual perching but there only needs to be say 6 inches of actual soil/compost, the rest filling or hollow beneath in places.