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Open Open daily, year-round; except Christmas Day & Boxing Day. Please check website for opening dates and times.


Partner Garden
Free access for RHS members at selected times

St Nicholas
Vale of Glamorgan

M4, Jct 33 on A48 then follow signs.

55 acres

02920 593 328

Visit website


Non-member adult £9.60

RHS members

Free access applies throughout open period (excluding special events).


  • Baby changing facilities
  • Café
  • Children's activities
  • Children's playground
  • Disabled access
  • Disabled facilities
  • Dogs welcome
  • Gift shop
  • Group rates
  • Parking
  • Picnics allowed
  • Plants for sale
  • Toilets


  • Arboretum
  • Autumn colour
  • Champion trees
  • Glasshouse (open to public)
  • Herbaceous border
  • Mediterranean/Italian garden
  • Pond or lake
  • Rock garden
  • Sculpture
  • Sub-tropical garden
  • Wildlife planting and features

About the garden

Owned by
National Trust

Dyffryn Gardens is an exceptional example of Edwardian garden design, covering more than 22ha (55a), they feature a stunning collection of intimate garden rooms including a rose garden, Pompeian garden, paved court, reflecting pool and several ponds and pools.    

The enormous great lawn is bordered by seasonal bedding and a croquet lawn, kept to international competition standards. Two large, fully operational kitchen gardens provide a bountiful harvest of fruit and vegetables that supply the on-site cafe. There is also a large glasshouse featuring a tropical orchid house, cacti house and vinery. The arboretum spans 9ha (22a) and contains one of the best woody collections in the whole of the National Trust, with some specimens dating back to the 1880s.

Designed by eminent landscape architect Thomas Mawson in 1906, the gardens are the early 20th-century vision of coal magnate John Cory and his son Reginald. Within the gardens, Dyffryn house, a grand Victorian mansion overlooks the key aspects of the gardens and parts of the ground and first floors have been restored and are semi-furnished.

Plants of special interest

  • Agapanthus
  • Alliums
  • Alpines
  • Asters
  • Begonias
  • Bluebells
  • Cacti & succulents
  • Camellias
  • Chrysanthemums
  • Clematis
  • Conifers
  • Cut flowers
  • Cyclamen
  • Daffodils
  • Dahlias
  • Delphiniums
  • Ferns
  • Fruit blossom
  • Fruit bushes/trees
  • Fuchsias
  • Grasses
  • Herbs
  • Irises
  • Lavender
  • Lilies
  • Magnolias
  • Maple
  • Orchids
  • Primulas
  • Rhododendrons/azaleas
  • Roses
  • Snowdrops
  • Spring bulbs
  • Sweet peas
  • Topiary
  • Vegetables
  • Waterlilies
  • Wildflowers
  • Wisteria

Get involved

We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.