Trees

Professor Fiona Stafford discusses the horse chestnut tree.

Fiona Stafford on the poplar, the most modern tree and the first to have its DNA sequenced

Fiona Stafford discusses the apple tree, which has been loved and hated for centuries.

Professor Fiona Stafford on hawthorn trees, which have divided Britain for centuries.

Professor Fiona Stafford on the workhorse of the forest, the pine tree.

Andy travels back 150 million years to the time of brachiosaurus.

Professional tree climber James Aldred visits Morocco to climb a giant Atlas cedar tree.

Why are our feelings about trees so mixed? Mike Williams explains

Chris Sperring is in Hampshire looking at lime trees with lime tree specialist Hugh Milner

Jonathan Freedland explores tree disease by charting Dutch Elm Disease from the 1920s.

Brett Westwood finds out why conservationists are dropping logs in rivers and streams.

James Aldred visits the Grove of Titans and climbs the world's tallest tree.

James Aldred travels to California in search of the world's biggest trees.

Lionel Kelleway travels to Herefordshire to marvel at Britain's ancient trees,.

Brett Westwood joins botanist Tim Rich to look for the whitebeam trees.

Brett Westwood investigates plans to expand Scotland's pine forests.

Paul Evans assesses the future of our urban trees.

Ted Green talks about a 600-year-old oak tree in Windsor Great Park.

The shape of tree rings indicates a relative warming of the world over the last 100 years

Reforestation by dropping trees from airplanes in icecream cone-shaped delivery packages

How dead trees provide food and shelter for wildlife - and shouldn't be cut down

The world's oldest organism - at 11,000 years old - is believed to be a Huon pine tree