The Gardens are divided into two main sections, the Walled Garden and the Lower Garden. The range of plantings throughout these areas means there is always something interesting to see, whatever the season.

The Walled Garden houses the scientific collections:

• Family Beds 
• Geographic Collections 
• The Euphorbia Collection
• The Medicinal Collection
• The 1648 Collection
• Woodland

The Lower Garden contains the ornamental collections:

• Herbaceous Border
• Rock Garden
• Autumn Border
• Vegetable Collection
• Orchard
• Bog Garden
• Merton Borders