Threave is delightful in all seasons. It is best known for its spectacular springtime daffodils, nearly 200, some of which are unique varieties. The garden spans some 60 acres and is made up of a large series of individual display gardens set amongst a wooded area with amazing views out to the surrounding countryside.

The individual gardens include the Rock Garden, the Sculpture Garden, an ericaceous Garden, a walled fruit, flower and vegetable garden, Secret Garden, a rose garden, a heather garden and a wooded garden. There are also herbaceous borders, annual bedding displays and display glass houses. There is a dwarf conifer collection, an orchard, a number of water features and waterfalls and a fine collection of trees and shrubs. The garden is used as a training ground for the National Trust of Scotland's School of Heritage Gardening.

The wider estate includes beautiful walks, bird hides and a special protection area for breeding waders and wintering wildfowl. Threave Estate is Scotland's first Bat Reserve where 7 species of the 9 bats known in Scotland may be seen. Also, there has been three years of successful breeding by ospreys and the nest may be observed from a platform on the river Dee.