Also in 1779, Banks took a lease on an estate called Spring Grove, the former residence of Elisha Biscoe (1705–1776), which he eventually bought outright from Biscoe's son, also Elisha, in 1808. The picture shows the house in 1815. Its 34 acres ran along the northern side of the London Road, Isleworth, and contained a natural spring, which was an important attraction to him. Banks spent much time and effort on this secondary home. He steadily created a renowned botanical masterpiece on the estate, achieved primarily with many of the great variety of foreign plants he had collected on his extensive travels around the world, particularly to Australia and the South Seas. The surrounding district became known as Spring Grove.