Chester Zoo has played a crucial role in saving one of the UK's rarest coastal plants.

Fewer than 5,000 Shore Dock plants remain in the wild worldwide. Now, the species is being reintroduced to its native habitat in North Wales.

Conservationists are working to secure its future at Newborough, Anglesey, by restoring the conditions it needs to survive and reintroducing hundreds of carefully cultivated plants.

Last week, more than 500 Shore Dock plants, carefully grown at Chester Zoo, were returned to the site in the first in a series of planned re-planting cycles.

"North Wales is home to incredible landscapes and rare species that deserve to be protected for future generations," said Clare Sampson, Natur am Byth Project Manager for RSPB Cymru.

"Through Natur am Byth!, we've been able to boost Shore Dock at Newborough and take an important step towards a sustainable population.

"This has been a true partnership effort – and we're committed to building a lasting legacy for this species".

Shore Dock grows in a highly specialised coastal environment, relying on a delicate balance of freshwater and sandy, open habitats.

Over time, these conditions have been lost or degraded, putting the species at risk.

Work at Newborough has focused on restoring these habitats – through measures such as scrub clearance, grazing and improving freshwater conditions – to give the plant the best chance of survival.

Phil Esseen, Head of Plants at Chester Zoo where the plants were nurtured, said Wales presented an important stronghold for the species.

He added: "It has been a privilege to grow these unique plants from seed, ensure they thrive under carefully controlled conditions and help return them to their rightful place.

"Conservation isn't just about animals. Protecting plants like shore dock is essential to restoring whole ecosystems.

"We're proud to support a project like Natur am Byth!, without which these plants would not be able to establish in the wild."

The project forms part of Natur am Byth!, a Wales-wide programme bringing together conservation organisations to save some of the country's most threatened species.

As well as helping Shore Dock, the work is already supporting a wider network of wildlife, from insects to amphibians, by improving the overall health and resilience of the coastal ecosystem.

While this latest phase marks real progress, conservationists say ongoing management will be crucial to ensure the species can establish and thrive in the long-term.