Digging a natural, unlined pond?
The garden slopes down to a very damp bit. When I was planting a willow down there last autumn, the hole I dug was soup almost immediately. What would happen if, when we hire a digger to get some root stumps out, we also dig a big hole, maybe steep at one end and sloping at the other? Maybe a surface area of four metres by three metres? I'm guessing it will fill up with muddy water. Could it be healthy, or will it just go slimy? I'd like to have frogs and newts, and perhaps plant up the margins with hardy bog plants. I won't be able to top it up with fresh water - it's too far from the house. I'm assuming I can't put a liner in, because it would just get pushed up from underneath by the ground water. Our subsoil is clay.