Marnock worked from 1876 on this seaside public park, situated along the 1½ mile valley linking Hastings with St Leonards. He retired from his London practice during the project and stayed for periods on the Sussex coast, to supervise construction and enjoy the sea air and social life. Even after the work was completed in 1883, he and his wife visited regularly.

Still known today for its fine tree collection, the linear park was planted with oaks, firs, poplars, chestnuts, beech and ash, with a mass of shrubs including rhododendrons. A central chain of lakes was interspersed with fine lawns and flowers, while streams, reservoirs, glades, carriage drives and woodland walks all added to the character of the site. The park was officially opened in 1882 by the Prince of Wales and Princess Alexandra, after whom it was named.

A three-year restoration programme, financed through an HLF grant of £3.5m, was completed in 2004. It enabled the Victorian character and landscape quality of the park to be reinstated, with historic trees safeguarded, views opened up, buildings and planting areas restored, paths reconstructed, and the addition of new signage, railings and a playground.

As part of Heritage Open Days, the Alexandra Park Greenhouse Group is assembling displays about Robert Marnock alongside other figures whose horticultural work has left a lasting effect on Hastings.

Alexandra Park during its recent restoration. (c) Kay Keeton.

The 1930s greenhouse at Alexandra Park, during restoration. Copyright as shown on image.