Trewithen Gardens

Discover this exquisite garden... home of Ceanothus 'Trewithen Blue' and other famous hydrids

Trewithen Gardens is a great family and dog friendly place to walk

Wildlife Gardens created to attract indigenous animals and insects.



In February 2012, Trewithen became one of only 30 gardens around the world to be recognised as an International Camellia Society Garden of Excellence, and the only privately owned garden to receive the award in Cornwall.


Within its 30 acres of woodland gardens are over 200 varieties of camellia, a collection started by horticulturalist George Johnstone, who inherited Trewithen in 1904.

Champion Trees


Trewithen’s botanic gardens boast 20 champion trees. 

These are trees that have been officially measured by the Tree Register and declared champions for either being the tallest of their type or for having the largest diameter.


Major gardens and parks throughout Britain and Ireland are inspected to update champion tree records – Trewithen’s trees have been measured twice in the last five years.


2013 RHS National Early Camellia Show at Rosemoor

2012 International Camellia Society Garden of Excellence

2011 “Trewithen Purple” – RHS Certificate of International Status & RHS National Rhododendron Show at Rosemoor

2010 RHS Early Camellia Show at RHS Wisley & RHS National Rhododendron Show at Rosemoor