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The Vicar's Brook originally flowed from its spring-line source at Nine Wells, in the parish of Great Shelford, through Trumpington and then into the River Cam at its present-day outflow near River Farm. In the early 17th century, the University and town of Cambridge diverted this stream near "Trumpington Ford" (where the London Road crossed the brook) with a newly created drain that ran, and still runs, into Cambridge. The watercourse is now named Hobson's Brook from Nine Wells to the point where it divides into the stream, still called Vicar's Brook, and the artificial channel, called Hobson's Conduit.

Salix babylonica (Babylon willow or weeping willow), is a species of willow native to areas of northern China, but cultivated for millennia elsewhere in Asia, being traded along the Silk Road to southwest Asia and Europe.
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