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Parks and gardens the Animal and Plant Health Agency inspect to check plant health.

First published:
17 February 2021
Last updated:

The Animal and Plant Health Agency carry out plant health inspections at public parks and gardens twice a year.

The parks feature thousands of different common and less well known plants and trees. The inspections note potential issues with damaging and regulated plant pests and diseases.

There are 22 sentinel sites, located in each local authority region. The gardens and parks form the Sentinel Site network. They are important monitoring sites acting as an early warning system for plant pests and diseases, forming a surveillance network.

If you are responsible for a park or garden with public access and would like to get involved please contact us at

Gardens and parks by county

  1. Blaenau Gwent - Bedwellty House
  2. Caerphilly - Parc Penallta
  3. Cardiff - Bute Park
  4. Merthyr Tydfil - Cyfarthfa Park
  5. Monmouthshire - Linda Vista 
  6. Newport - Tredegar House (National Trust)
  7. Torfaen - Pontypool Park
  8. Bridgend - Bryngarw Country Park 
  9. Carmarthenshire - National Botanic Garden of Wales
  10. Ceredigion – Llanerchaeron (National Trust)
  11. Neath Port Talbot - Margam Park 
  12. Pembrokeshire - Colby Woodland Garden (National Trust)
  13. Rhondda, Cynon, Taff - Aberdare Park
  14. Swansea - Clyne Gardens
  15. The Vale of Glamorgan - Dyffryn Gardens (National Trust)
  16. Conwy - Bodnant Garden (National Trust)
  17. Denbighshire - Bodelwyddan
  18. Flintshire - Loggerheads Country Park
  19. Gwynedd - Penrhyn Castle (National Trust)
  20. Isle of Anglesey - Plas Newydd (National Trust)
  21. Powys - Powis Castle (National Trust)
  22. Wrexham - Chirk Castle (National Trust)