Future-Proofing Branitz: New Tree University Takes Root

Sun 20th Apr, 2025

The iconic oak trees in Branitz Park are increasingly struggling to withstand the effects of drought and heat. In response, a new initiative is underway to plant tree species that are more resilient to these changing climate conditions. The recently established Tree University is dedicated to nurturing young saplings and shrubs to support the park's ecosystem.

Currently, the Tree University is home to approximately 3,000 young trees and shrubs, representing 400 distinct species known for their climate resilience. According to park officials, this initiative is Germany's largest project aimed at preserving historical gardens and parks in the face of climate change.

To replace the traditional oaks that have historically populated the Branitz landscape, the park is now cultivating species such as Lebanon oaks, which are better suited to adapt to the evolving climate. Additionally, various species of beech trees have been introduced.

Climate change is causing significant challenges, including prolonged dry spells, heat waves, severe storms, and milder winters that facilitate pest infestations. These conditions adversely affect many older trees that are already weakened. The proliferation of pests, such as the oak borer beetle, has been particularly concerning, as weakened trees become more susceptible to such infestations.

In 2021, the situation became so dire that 500 oak trees had to be removed to prevent further spread of pests to other trees. However, some older species, like summer linden trees, appear to be thriving in the current climate.

The management of Branitz Park also carries the legacy of Prince Hermann von Pückler-Muskau, an influential figure known for his contributions to garden design. In 1846, he established a tree nursery within the park to cultivate young plants before relocating them. Now, 165 years later, the park has reinstated its tree nursery at the original site within the castle's greenhouse. Initially focused on propagating and preserving valuable tree and shrub varieties, the nursery is now increasingly prioritizing climate adaptation.

The federal government has invested EUR5.5 million into this new Tree University. Last year, significant renovations were made to the site, including the demolition of many dilapidated greenhouses from a former vegetable nursery to make way for updated facilities. This year, six greenhouses are set to be remodeled for seed cultivation, laboratory work, and research purposes, with the entire facility expected to be completed by 2028.

Branitz Park, which contains over 30,000 trees, is now self-sufficient in producing new saplings. Each year, around 200 new trees are planted, emphasizing the concept of 'only the strong survive' in the nursery's planting philosophy. All saplings are cultivated on-site, leading to a much higher survival rate compared to trees purchased from commercial nurseries, which often perform poorly in local conditions.

This local cultivation approach has yielded an impressive survival rate of 90%, a significant improvement over the less than 50% survival rate of previously acquired trees, which had led to frustration among gardeners. The insights gained from the Tree University are intended to benefit other historical gardens and parks across Germany. Furthermore, the Tree University collaborates with various research institutions, including the Humboldt University in Berlin, and with parks in other countries.


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