Company director Des Brannan, bought a plant from B&Q 10 years ago.

It quickly outgrew his own home, so he took it to the packing specialists office, in Stroud, Gloucestershire.

It has since thrived from the heat of the computers, and is now more than 300ft (90m) long.

Mr Brannan said it was "nice to have something green living in the office."

"It calms people down," he added.

Mr Brannan said he could no longer remember the name of the plant, but some people have suggested it could be a Pothos.