water violets

The various small chalk streams of Lincolnshire are particularly vulnerable to low flows in dry conditions. Low water levels can expose the depressions in river gravels where some fish lay their eggs.

Tetney Blow Wells is a Site of Special Scientific interest for its wetlands. The blow wells are a series of pools, fed from underground springs, which constantly bubble up through the chalk that lies beneath the Lincolnshire Wolds. Water violets grow in the wells themselves, while the marshy ground around them is home to a community of rare wetland plants which earned the site its protected status.