Can anyone suggest a small tree or shrub to plant in a half-barrel? It has to be evergreen, year round interest, hardy and on a south facing aspect at the front of a house. We live in SW Wales on a hill. No pressure folks!
Bamboo Phyllostachys nigra. Evergreen, year round interest, hardy and suitable for a south facing location.
A pyracanthus, with variegated leaves, if that's your kind of thing. Good for pollinators, birds, has blossom, berries, good for nesting, hardy, year round interest.