Crying in the rain

Dig down through the soil in any part of my garden and you'll hit a solid pan of pebbles and boulders. It comes as a surprise after two feet of soft, rich soil. A hard, jolting surprise. The tines of your fork bend as you try to find a way through, to ease the foreign matter loose. Your neat hole dug for the fence, trellis or gazebo post becomes enlarged and distorted in the search for the