The planting of the Rhododendron gardens was first started in 1854 and are considered the earliest and most famous rhododendron gardens of Ireland. The first plantings, were the common Rhododendron ponticum, which was planted in peat that had been carried up to the hill and packed into crevasses in the rock face.
Over time the R.ponticum were replaced by newer hybrids and other species. Currently it is estimated that there are over 200 different species and hybrids planted in the garden.
From April to late May there is a fountain of colour over the hill, completely submerging the visitor in fragrance and shades of all descriptions.
Visit Aideen's Grave, a 2,500 BC portal tomb at Howth Castle. Discover the tragic Irish legend of Oscar and Aideen, immortalised by poet Samuel Ferguson.
Discover Muck Rock, Howth's hidden gem. A 10-15 minute hike from Howth Castle reveals stunning panoramic views of Dublin Bay, Ireland's Eye & beyond.