The Annesley Walled Garden in Castlewellan Forest Park will reopen on 7 March 2026 after nearly two years of restoration and repairs from storm damage. Newry, Mourne and Down District Council and the National Lottery Heritage Fund provided funding as part of a £5.5 million project for the Castlewellan Historic Demesne.

The 12-acre garden dates to the 1850s and holds rare trees, shrubs and plants. Its arboretum contains one of Ireland's most important collections of trees and shrubs. The council's chairperson, Councillor Philip Campbell, thanked craftspeople, gardeners and volunteers for their efforts, including recovery from Storm Éowyn that felled 120 trees over a year ago. He also acknowledged support from the fund and Forest Service, noting the timing aligns with magnolia blooms.

Two apprenticeships concluded through the project. Aidan Murphy and Marc Johansen trained under Head Gardener Alwyn Sinnamon and Gardener Kevin Dolaghan, and now manage labelling and volunteer groups. Frances McNally of the National Lottery Heritage Fund called the reopening a key project step that preserves natural and built heritage while offering training. John Joe O’Boyle, Forest Service chief executive, highlighted the garden's nationally and internationally significant plant specimens and the service's aid in securing funding.

Guided walks start at 10am on opening days, with pre-booking required. Children's activities run 11am to 3pm on 7-8 March and 14-15 March, featuring storytelling, circus skills, face painting and crafts. A free shuttle will operate between the car park and garden on those dates for those with mobility needs or young children. The Grange and courtyards will open as a visitor hub this summer.