The first ever complete history of Trebah

A fascinating journey through history, horticulture, and heritage returns, as The Story of Trebah Exhibition opens once again to visitors.

Back by popular demand for 2026, this landmark exhibition is Trebah’s most comprehensive to date, offering an immersive look at the remarkable evolution of the valley garden over centuries.

New highlights this year include:

Running from Saturday 9 May to Sunday 27 September, the exhibition is open daily from 9.30am to 5pm and is free to view for all visitors.

Visitors will be taken on a captivating journey through time, beginning with Trebah’s earliest recorded history in the Middle Ages and tracing its transformation into the world-famous sub-tropical paradise admired today. Through carefully curated displays, historical imagery, and rare archival material, the exhibition explores the people, plants, and stories that shaped Trebah from the 1800s to the present day.

Whether you are a returning visitor, a garden enthusiast, or discovering Trebah for the first time, The Story of Trebah Exhibition offers a unique opportunity to uncover the heritage behind one of Cornwall’s most celebrated gardens.