Alan Titchmarsh' garden secrets.
1. 17th Century: Alan visits Hatfield House to examine the famous parterres and the use of perspectiv
2. 18th Century: Alan Titchmarsh looks at the 18th-century Stowe landscape gardens in Buckinghamshire
3. 19th Century: Alan Titchmarsh explores Britain's great gardens. Alan looks at how the Victorians transformed the garden from natural landscapes to a new manufactured style.
4. 20th Century: Alan Titchmarsh explores Britain's great gardens. Here, he reveals how Sissinghurst in Kent was one of the first lifestyle gardens, made up of different 'rooms'.
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