Newly-planted native trees have also been reintroduced to help preserve the habitat of the lesser horseshoe bat.

BBC: John Whitehead at the trail

The rare female greater horseshoe bat flew more than 100 miles from Gloucestershire to another bat colony in Dorset in under three months.

BBC: Greater horseshoe bat

The gardens are also involved in planting, to protect the home of Europe's largest colony of the lesser horseshoe bat, a site of special scientific interest.

BBC: John Whitehead at the trail