Second oldest botanic garden in England, particularly linked with medicinal plants through its foundation by the worshipful Society of Apothecaries in 1673. Three and a half-acre garden with one of the oldest rock gardens in Europe, herb garden with culinary and medicinal plants, botanical order beds, glasshouses, rare plants and tender species. Largest olive tree outdoors in Britain. Historical walk, and medicinal walk both self-guided via guidebook. New 'Garden of World Medicine' showing use of plants medicinally by tribal societies.