Trewithen - http://www.trewithengardens.co.uk - (31 miles)
An historic private estate internationally renowned for its collection of magnolias and camellias also boasting 24 'Champion Trees', woodland walks, 18th century estate house, Tea Shop and highly prized plants from the on-site nursery

Trevarno Estate and Gardens - www.trevarno.co.uk - (25 miles)
Beautiful, unforgettable, a perfect day out for all the family. Do not miss a visit to the historic Trevarno Estate. Explore the magnificent 35 acre Victorian gardens and enjoy the abundant wildlife in the outer grounds and woodland walks. Visit the remarkable National Museum of Gardening, where ephemera and antiques are displayed in ten themed areas. There are two further museums as well – so take a trip down memory lane through the Soap or Toy Museum. For those with energy to spare there is a large adventure play area and a 2km Estate walk, passing alongside a new steam railway restoration project and allows visitors to explore the wider estate. There are a wide range of different events throughout the year to suit all age groups too .

The Eden Project - http://www.edenproject.com/ - (25 miles)
Biome conservatories containing plants from the rainforests and the warm temperate regions of the world.