The Valdres Alpine Garden Project
Exploring the Relationship Between Alpine Plants and Their Growing Environments
Successful cultivation of alpine plants begins with understanding the conditions in which they naturally grow. In mountain environments, factors such as geology, drainage, moisture, temperature, exposure and winter snow cover influence where plants establish themselves and how they develop.
The Valdres Alpine Garden Project is a long-term horticultural and experimental initiative in the central part of southern Norway, dedicated to exploring how these growing conditions can be recreated and studied in cultivation.
The project combines practical alpine gardening with systematic observation, experimentation and documentation, with the aim of contributing to a better understanding of alpine plant cultivation.
The Garden and Its Environment
Located at approximately 900 metres above sea level, the garden is being developed in a mountain climate characterised by long, snowy winters and relatively short growing seasons. The new garden site covers approximately 2,900 square metres and provides opportunities to create a variety of specialised growing environments.
Development is planned to begin in 2027, with construction, planting and experimental activities introduced progressively over the following years. The ambition is to establish a garden where plants from different mountain regions can be cultivated under conditions that reflect important characteristics of their natural habitats.
Recreating Natural Growing Conditions
Rather than focusing primarily on the visual appearance of a traditional rock garden, the project places particular emphasis on recreating the physical and environmental conditions that alpine plants require.
Different growing environments will be developed, including:
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Crevice Gardens – Carefully constructed stone arrangements with varying spacing, planting positions and substrate levels.
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Scree and Alpine Rubble – Freely draining habitats inspired by natural mountain slopes and accumulations of rock fragments.
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Rocky and Gravel-Based Habitats – Growing environments designed to accommodate plants with different root systems and moisture requirements.
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Peat-Based and Moist Habitats – Specialised environments for plants associated with cool, acidic or consistently moist conditions.
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Wetlands and Streamside Habitats – Areas where controlled moisture conditions allow the cultivation of plants adapted to wetter mountain environments.
Each environment will be developed with attention to substrate composition, drainage, moisture availability, temperature and seasonal conditions.
Research and Experimental Cultivation
An important part of the project is investigating how different growing environments influence the performance of alpine plants.
One of the planned studies will examine crevice garden construction, comparing different distances between stones and different substrate levels relative to the stone surfaces.
The aim is not to assume that one construction method is necessarily better than another, but to investigate how these differences influence growing conditions and plant performance.
Observations will include:
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Temperature and moisture conditions within different growing environments.
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Plant establishment, growth and development.
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Flowering and seed production.
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Plant survival and performance through successive growing seasons and winters.
By comparing different construction methods and documenting their effects over time, the project aims to generate practical knowledge that may be useful to alpine plant growers and horticultural researchers.
Long-Term Documentation
The Valdres Alpine Garden Project is designed as a long-term undertaking, with systematic documentation forming an integral part of its development.
Environmental monitoring and documentation of growing conditions are expected to begin in 2027, while the main experimental planting and biological observations are planned from 2028 onwards. Plant records, habitat descriptions, experimental observations and photographs will be maintained to support comparisons across multiple growing seasons.
The intention is to build a body of documented experience that can contribute to better cultivation methods and a deeper understanding of the relationship between alpine plants and their growing environments.
Sharing Knowledge and Experience
Plants Above Treeline (PAT) aims to make knowledge and experience from the Valdres Alpine Garden Project available to a wider international community. As the project develops, PAT will share selected observations, photographs, experimental findings and practical experiences through its website and other educational activities. Both successful results and unexpected challenges can provide valuable insights into alpine plant cultivation.
Explore the experimental approaches, and results as they become available. Learn from cultivation methods and questions being investigated through the project.
Student Placements
The Alpine Garden Project is also intended to provide opportunities for practical learning.
Through Plants Above Treeline, students may have opportunities to participate in structured placements involving alpine horticulture, plant propagation, habitat construction, botanical documentation and experimental observation. Placements will be arranged in cooperation with the garden's owner and adapted to the learning objectives and practical circumstances of each placement.
Opportunities will be announced as they become available.
Learn More About Student Placements
Follow the Project
The Valdres Alpine Garden Project is an evolving initiative that will develop over many years. The Valdres Alpine Garden Project is a privately owned and funded initiative. Plants Above Treeline (PAT) contributes to the sharing of knowledge and educational opportunities associated with the project but does not own the garden.
From the construction of specialised growing environments to the long-term observation of plant performance, each stage offers opportunities to explore, question and learn. We invite you to follow the project and share in the knowledge and experience gained along the way.
View Project Updates & Findings
