Garden invaders

Date
Channel
BBC (UK)

Mark Evans and Kim visit the 600 ft garden owned by Mandy and Tim Blackmore. They live in Guildford, Surrey. In this program, the area closest to the house is transformed. It has to be a place where visitors can be entertained.
Mandy doesn't do well on the questions, and so they also miss out on the grand prize this time. Kim does make sure, however, that the result is still satisfactory.