High Glanau is located on the western edge of the high plateau to the west of the Wye valley, about 2km north of Trellech. It was the last home of H.Avray Tipping (1855-1933), who lived there from 1922 onwards. The house was designed in an Arts-and-Crafts/ vernacular style, and the surrounding landscape laid out as a complex of woodland and open gardens, between 1922 and 1929 (nprn 266087).
The kitchen garden lies to the south of the ornamental garden, on the south side of the house, divided from it by a high, east-west stone wall. The garden area is roughly square and descends the east-west slope as two terraces separated by a scarp. On its east and south sides the garden is bounded by wooden panel fencing and a conifer hedge. Near the west end of the north wall a single-storey stone bothy straddles it, its north side protruding into the ornamental garden the other side. Next to this is a free-standing wooden-framed greenhouse on a stone and brick base. It has recently been restored and all fittings (pipes, staging, ventilation etc.) are original and in working order (23100).
Sources:
Cadw 1994: Register of Parks and Gardens of Special Historic Interest in Wales: Gwent, 48-50 (ref: PGW (Gt)45(MON)).
https://ngs.org.uk/view-garden/19406/ National Garden Scheme photo gallery: High Glannau.
RCAHMW, 10 June 2022