Looking for hardy plants for a whisky barrel
we are around half a mile from the sea on the west coast
of Scotland and I'm struggling to find anything to survive in 2 half whisky barrel planters. one gets dappled sun and the other is shaded totally. Should I cut my loses and move the shades one? I've tried a few ideas like buxus, small conifers, but nothing survives. Our garden is quite exposed to wind. Its right in front of a window so would love to make it a feature.