Grotto and Rockery Approximately 40 Metres South of Temple of Flora is a Grade II listed building in the South Oxfordshire local planning authority area, England. First listed on 19 August 1986. Grotto, rockery.

Grotto and Rockery Approximately 40 Metres South of Temple of Flora

WRENN ID
blind-sentry-nightshade
Grade
II
Local Planning Authority
South Oxfordshire
Constituency
Didcot and Wantage MP: Olly Glover (LD)
Country
England
Date first listed
19 August 1986
Type
Grotto, rockery
OS grid reference
SU 541 981
Coordinates
51.67985, -1.21757
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The grotto and rockery, located approximately 40 meters south of the Temple of Flora in Nuneham Park, were built around 1771, with the rockery likely extended in the early 19th century. Constructed from limestone and composition boulders, along with some brick, the exterior resembles a rocky cliff. It features a central entrance that leads into the grotto, a ravine to the right that ends in a tunnel, and an extensive rockery to the left, which can be accessed by a narrow serpentine flight of stone steps. Adjacent to the grotto entrance is a small marble plaque inscribed with a quote from Milton. Inside, the grotto has a saucer dome made of rough stonework, while the tunnel is vaulted with brick. Originally, the grotto was larger and included a hand-operated cascade. This structure was part of an innovative flower garden designed by the Reverend William Mason, who authored "The English Flower Garden," for Lord Nuneham, later known as the 2nd Earl Harcourt.

Local climate

Grotto and Rockery Approximately 40 Metres South of Temple of Flora sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 80% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 72% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, more than 52% of listed buildings. Of these, 15 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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