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House of Nature

The Maison de la Nature, formerly the “Kräizhaff” farm, also known as Schnappshaff, was built in the 1820s in Kockelscheuer, on land belonging to the municipality of Roeser.

In the 1970s, the site was purchased by the City of Luxembourg and renovated. It was not until 1994 that the Maison de la Nature and the adjacent land were made available to the “Nature Activities” department of the City of Luxembourg’s Education Service, to the non-profit organization “ natur&ëmwelt ,” and to the Hëllef fir d’Natur Foundation.

Today, the Maison de la Nature serves as a center for documentation, information, awareness-raising, and education on sustainable development and nature conservation.

Kalborn Mill

The Kalborn Mill, located in the Our Valley, was first mentioned in 1728. Originally a communal mill belonging to the lords of Clervaux, the Kalborn Mill operated as a traveling mill until World War I—meaning that the miller would travel through the surrounding villages with his horse-drawn cart to collect grain. It was not until the mid-19th century that the mill was expanded and equipped with three millstones. From then on, the farmers brought their grain to be ground themselves. During World War II, the German occupation brought the mill’s operations to a halt, and it was never reopened. Nevertheless, the mill remained inhabited until 1982.

In 1997, the Hëllef fir d’Natur Foundation purchased the mill and converted it into a breeding and biological research station for the freshwater pearl mussel (Margaritifera margaritifera), which had become rare and critically endangered. Today, the renovated buildings of the Kalborn mill house the Water Discovery Center (WEZ), the freshwater mussel breeding station, and the Natura 2000 Room.

North branch

Supported by the municipality of Clervaux from the very beginning in 1998, the Northern Branch was created to be as close as possible to our major nature reserves, such as Cornelysmillen.

Initially located in Munshausen, then in Heinerscheid, the Northern Branch is now located in Marnach in a municipal building.It serves as an information center but, above all, as an office for all of the Foundation’s environmental projects implemented in the northern part of the country.

Ecological cultivation center

In Schwebsange, on the banks of the Moselle in Luxembourg, the Hëllef fir d’Natur Foundation took over the Mediterranean garden—created over the past 30 years by Charles Roovers and Dieter Lingener—at the end of 2009 as part of a donation.

In 2012, the former small barn was renovated and now serves as a cold frame in winter for overwintering potted plants; in summer, it is open to visitors to the garden and for the center’s activities. The upper floor houses the center’s offices as well as a reference library containing horticultural literature, which is also accessible to visitors.

The Ecological Culture Center serves as a welcoming hub for visitors and gardening enthusiasts, where numerous activities are organized throughout the year.