To understand the Diriyah glasshouse you have to understand what stood in its place a century earlier: a domestic courtyard inside the Al-Saud family compound at At-Turaif, walled in tamped earth, shaded by date palms whose trunks rose along the perimeter, and watered from a shallow stone-lined well drawn slowly by hand. When the restoration program began, the brief was clear — keep the mud-brick walls, keep the well, but cover the courtyard with a glass roof so that more delicate flora could be sheltered from the hard summer wind.
The result, finished in early 2024, is a hybrid space. The wall mass is original Najdi adobe, repaired with traditional palm-trunk reinforcement. The roof is a low pitched glass shell on a steel frame, slightly recessed below the parapet so that, from outside the compound, the conservatory remains almost invisible. From inside, the courtyard becomes a quiet, sun-filtered room.
"The glass does not announce itself. From the lane below, the courtyard still reads as adobe. The change is felt only as you step in, and the wind falls away."
Flora Under the Glass
The principal collection is built around three groups. First, a row of mature date palms — the cultivars Khalas, Sukkari, and Sagai — retained from the original courtyard. Second, a young grove of frankincense saplings (Boswellia sacra) trialled from southern Najran stock, where they grow more easily in the wetter monsoon hills. Third, a low border of Arabian jasmine, sweet basil, and desert lilies kept along the inner edge of the wall, where shade is deepest.
The microclimate is gentle. Daytime temperatures inside the glasshouse stay roughly four degrees cooler than the lane outside in summer, thanks to thick walls, deep shade, and a low-flow misting line. In winter, the glass roof traps daytime warmth, so the frankincense saplings — which fail in open Riyadh winters — survive comfortably.
Curating the Restoration
Much of the editorial value of this site comes from its restoration archive. The compound's renovation team kept detailed records of every wall course, every roof beam, every species selected for the new collection. Flowarde is currently cataloging these records under reference series FA-CN-021x, alongside short interviews with the gardeners who maintain the daily watering and pruning routines.
Frankincense sapling, season two
Restored adobe perimeter, At-Turaif