Dyffryn Gardens & Arboretum
Dyffryn Gardens, St Nicholas, Vale of Glamorgan
Top-graded Edwardian gardens near Cardiff, designed by Thomas Mawson for John Cory, with themed Garden Rooms, a Great Lawn, a large arboretum and glasshouses, now run by the National Trust.
Visit information checked 22 October 2026
Garden UK guide
Why visit Dyffryn Gardens & Arboretum?
Dyffryn is the grandest Edwardian garden in Wales, and it is a great place to see the garden room idea at full scale. Thomas Mawson designed the gardens for the coal owner John Cory from 1894, and Cory's son Reginald, a keen plant collector, filled them with plants from around the world.
The gardens fall into three main areas. In the middle, Dyffryn House looks over the croquet lawn and the Great Lawn, which has a long canal and a bronze Chinese-style dragon fountain at its centre. At the southern end are the Vine Walk, a series of arches each with a different vine, and the Lavender Garden with its red brick folly. To the west are the Garden Rooms, a series of terraced themed gardens including an Italian Terrace, Australasian and Mediterranean Gardens, a physic garden, a rose garden, a reflecting pool and the Pompeian Garden, entered through an arch dated 1909. The east side is the arboretum, the largest section, leading from the kennel bank to the rockery. Statues of people with animals appear throughout, and the glasshouses now hold the bronze figures of Fujin and Raijin.
Gardeners will find plenty of ideas in the Garden Rooms, each a manageable size, and the arboretum includes trees from Reginald Cory's plant hunting, most famously the paperbark maple grown from Ernest Wilson's seed. There is a shop and tea room at the admissions building.
What to see
- The Garden Rooms, including the Pompeian Garden, Italian Terrace and rose garden.
- The Great Lawn and canal with its bronze dragon fountain.
- The Vine Walk and the Lavender Garden with its brick folly.
- The arboretum, including the paperbark maple grown from Ernest Wilson's seed.
- The glasshouses, now home to the bronze statues of Fujin and Raijin.
- Dyffryn House and the croquet lawn in front of it.
Dyffryn Gardens & Arboretum through the year
- spring
- The arboretum and rockery come into leaf and flower, and the Garden Rooms start to fill.
- summer
- Roses, lavender and the themed Garden Rooms are at their fullest.
- autumn
- The arboretum, including maples raised from plant hunters' seed, gives strong autumn colour.
- winter
- The gardens have opened most days of the year, and the glasshouses and bark in the arboretum make a winter walk worthwhile.
The story behind the garden
The Dyffryn estate is recorded from 640 AD, and Thomas Pryce built a Georgian house here in 1749, adding the walled garden. John Cory bought the estate in 1891, built the present house in 1893 to 1894, and commissioned Thomas Mawson, who laid out the gardens between 1894 and 1909.
Reginald Cory inherited in 1910 and, as a plant collector and leading figure in the Royal Horticultural Society, sponsored plant-hunting expeditions that stocked the gardens. After his death in 1934 the estate passed to his sister and then to Sir Cennydd Traherne, who leased it to Glamorgan County Council in 1939 as a botanical garden. The Vale of Glamorgan Council bought it in 1999, and from 2006 the gardens were restored to Mawson's design with lottery funding. The National Trust took over on a 50-year lease in 2013.
Plan your visit
- Best for
- Anyone wanting garden design ideas, Edwardian garden history and a big arboretum within easy reach of Cardiff.
- Getting there
- Dyffryn Gardens are near the villages of Dyffryn and St Nicholas in the Vale of Glamorgan, a short drive west of Cardiff.
- Before you go
- The gardens are large, so allow most of a day to see the Garden Rooms, lawns and arboretum. Check the National Trust page for current opening times, tickets and parking.
Source: Wikipedia: Dyffryn Gardens
Questions about visiting Dyffryn Gardens & Arboretum
Is Dyffryn Gardens National Trust?
Yes. The National Trust has cared for Dyffryn House and Gardens since January 2013 on a 50-year lease from the Vale of Glamorgan Council, which owns the freehold.
Who designed Dyffryn Gardens?
The landscape architect Thomas Mawson designed the gardens for John Cory, working between 1894 and 1909. Cory's son Reginald then developed the planting with plants from worldwide expeditions.
Is Dyffryn Gardens open all year?
Dyffryn has been open nearly all year round, around 363 days a year. Opening times vary by season, so check the National Trust page before you visit.
Is there a café at Dyffryn Gardens?
Yes. The admissions building houses a shop and an attached tea room, so it is easy to stop for a drink before or after a walk.
Was Doctor Who filmed at Dyffryn Gardens?
Yes. Dyffryn has been used for Doctor Who episodes including 'The Girl Who Waited' and 'Deep Breath', as well as Torchwood and The Sarah Jane Adventures.
Garden features
Location
Dyffryn Gardens, St Nicholas, Vale of Glamorgan
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