After ten years at the Leach Pottery in St Ives, Scott Marshall left to start Boscean Pottery with Richard Jenkins in St Just, a few miles from Land's End. They built their own oil-fired four chamber climbing kiln, big enough to fire 3,000 items at a time. It was capable of reaching very high temperatures and enabled them to produce some beautiful rich dark glazes.

After the death of his partner, Richard, Scott found the kiln, which had been so convenient and versatile for large-scale production, too large for the limited output of one man. He tried using only two of the chambers, but found it impossible to reach a temperature greater than 1,200° C. The kiln was demolished in 1981 and an electric kiln took its place. Scott watched as the kiln, which had taken the best part of a year to build was flattened in half a day. He used some of the wedge-shaped bricks to pave a path to the front door of his studio.

Scott operated Boscean Pottery until his death in 2008, producing the type of work that he is well known for in natural colours. His son, Seth, gave up pottery in early 2000 in favour of painting, which is pottery's loss. He made very attractive highly coloured items that complemented his father's work.