Rowallane Garden is a National Trust property located immediately south of Saintfield, County Down, Northern Ireland on the A7 road. It is particularly noted for its extensive collection of azaleas and rhododendrons. It is also home to the National Collection of penstemons. It opened on 16 May 1956 by Lady Brookeborough after being taken over by the National Trust in July 1955.[citation needed] From Wikipedia
