The LTEtt arboretum is a treasure trove of biodiversity, with around 1,000 local and foreign woody plants. The collections of elder and hawthorn varieties are among the largest of their kind in Europe. The ‘climatic tree trail’ is a special feature, with a selection of ‘climatic trees’ tested for drought and heat tolerance. Native maple varieties as well as cherry, apple and ornamental ash trees form a living gene bank.
Some of these were already considered extinct or are only present in Europe in very small numbers. They form the basis of the ‘Lost Cultivar Project’, which aims to ensure the conservation of varieties that have fallen into oblivion. Since 2022, the arboretum has been part of the LTEtt, used for educational and scientific purposes and open to all interested visitors.
The arboretum at the Lycée Technique d’Ettelbruck (LTEtt) covers a total area of 5 ha. Around 1,000 different trees and shrubs are planted here. The site comprises the ‘Arboretum Haart’, ‘Arboretum New Haart’ and ‘La Pépinière’ zones.
