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.
Aideen's Grave is a beautiful collapsed monolithic portal tomb located in the grounds of Howth Castle. The tomb dates to around 2,500 BC and comprises of a two portal stones around 2.5 metres in height,
Muck Rock is probably (soon to be not) one of Howth's best kept secrets. Head up past Howth Castle to the path at the back of Deer Park Café Bar. From here...