Our garden is heavy clay and had a tendency to get waterlogged. We planted a few 'thirsty' plants to help drink the water (1 x golden willow, 2 x smaller willows). I think they have made a difference but don't know for sure. My greenhouse floor is also made from gravel, but the greenhouse is situated on the highest part of the slightly sloping garden. It has never been wet underfoot but I have wondered if the gravel contributes to the condensation inside. I just open the door first thing in the morning and keep the window open when temperatures allow.

__________________
Julie