Grüne-Soße-Denkmal, Culinary monument in Oberrad district, Frankfurt, Germany

The Grüne-Soße-Denkmal is a row of seven small greenhouse-like structures on concrete foundations, designed by Olga Schulz and inaugurated in 2007. Each house has translucent polycarbonate panels in a different shade of green, matching one of the seven herbs of Frankfurt green sauce. Inside, the floor bears the herb's name: borage, chervil, cress, parsley, burnet, sorrel and chives. The houses are display cases, not planters; the herbs grow in the surrounding fields.

The monument was inaugurated on 21 May 2007 in Oberrad. It was designed by Olga Schulz, a student at the Hochschule für Gestaltung in Offenbach, and financed by Regionalpark RheinMain SüdWest. It is considered Germany's first and so far only monument to a regional dish, Frankfurt's green sauce. It was renovated in 2018.

On the floor of each of the seven walk-in greenhouses stands the name of one of the seven herbs of Frankfurt green sauce: borage, chervil, cress, parsley, burnet, sorrel and chives. The artist treats the structures as museum display cases, and the herbs themselves are grown and tended in the fields around the monument.

The monument stands behind the Speckgasse at the edge of the Oberrad herb fields. It can be reached with RMV tram line 16 or bus line 46 followed by a short walk. The seven greenhouses were designed to be walked into at the 2007 inauguration; they are illuminated after dark as part of the Luminale light festival.

The translucent surfaces of the greenhouses reflect the Frankfurt skyline and create a distinctive glow during evening hours. This optical effect transforms the monument into a dynamic installation that changes appearance depending on time of day and lighting conditions.