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New for 2023

Partner Garden
Free access for RHS members at selected times

Ciliau Aeron
Near Aberaeron
SA48 8DG

Off A482. Bus service from Aberystwyth train station to Carmarthen train station, alight New Inn Forge, about ½ mile from the garden.

4 acres

01545 570200

Visit website

Opening Hours

Weekends only during winter; 5 days a week from 22 Feb–5 Nov. Please see website for opening dates and times.


Please see website for admission prices.

RHS members

Free access (member 1 only for joint memberships) applies when open.


  • Accessible facilities
  • Children's activities
  • Dogs welcome
  • Parking
  • Picnic area
  • Plant sales
  • Refreshments
  • Toilets


  • Autumn colour
  • Pond or lake
  • Wildlife planting and features
  • Woodland

About the garden

Owned by
National Trust

New for 2023: Nestled in the secluded Aeron Valley, the villa and garden at Llanerchaeron is a beautifully conserved property, situated within a picturesque landscape. Comprising pleasure grounds, walled gardens and a working farm with access to the estate, Llanerchaeron offers a magnificent setting for the villa, which provides insight into 18th-century design, and the career development of one of the UK’s most prominent architects, John Nash.

The walled gardens, built in the late 18th century, have been producing fruit and vegetables for more than 200 years. Originally a state-of-the-art hive of Georgian industry, the gardens have a much more romantic and relaxed atmosphere today. Within the walls, discover herbaceous borders, productive kitchen gardens, established fruit trees and the remnants of horticultural technology spanning the lifetime of the garden. All are encircled by pleasure grounds and the setting of the wider estate.

Along the south-facing walls are what remains of the Georgian and Victorian engineered glasshouses, replete with fire pits and hypocaust systems. In addition, the site is home to a rare example of a concrete glasshouse from the 1950s. With so much horticultural history along a 100-metre stretch of wall within the walled garden, it is heartening to see that the site is still producing food to this day.

Seasonal vegetables, fruit and cut flowers are grown in the garden’s protective environment, and a team of dedicated staff and volunteers tend to the plants, pick the fruit and vegetables and prepare them for sale in the Visitor Centre. The site is managed to be as sustainable as possible, employing traditional horticultural techniques, that are adapted to meet the modern challenges of climate change. Hopefully, this response and adaption to the horticultural approach will ensure the garden prospers for another 200 years.

Please note: This is a partially accessible garden (most of the garden is accessible but some parts are not easily accessible).

Plants of special interest

  • Alliums
  • Bluebells
  • Camellias
  • Cut flowers
  • Daffodils
  • Ferns
  • Fruit blossom
  • Fruit bushes/trees
  • Herbs
  • Hostas
  • Rhododendrons/azaleas
  • Roses
  • Shade-loving plants
  • Snowdrops
  • Spring bulbs
  • Sweet peas
  • Vegetables
  • Waterlilies
  • Wildflowers

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.