Our projects
Projekt Slussen, Stockholm
Our products found their way into Stockholm City’s pioneering Slussen renovation. The Projekt Slussen installation showcases how living soil systems can be integrated into one of Europe’s most complex urban infrastructure projects, combining robust engineering with long‑term plant health and resilient, biologically active growing media.
2024-2025
Sveavägen, Stockholm - Traffikkontoret
Our substrate was utilised for its trendous potency to support the establishment and continued growth of these Goldenrain trees (Koelreuteria paniculata) on Sveavägen. These potted trees are displaying profound levels of health, vigour & vitality.
2025
Skärgårdskuppan - Värmdö, Stockholm
Rehabilitation of contaminated soil media. Over a 3 year period, our product rebuilt soil fertility whilst implementing a foliar feeding nutritional program. Over 3 growing seasons we revived the whole garden, now managed fully by the head gardener.
2023-2025
Engelsberg's Bruk UNESCO World Heritage Site, Västmanland, Sweden
Soil Rehabilitation of contaminated soil environment for establishment of large transplants. The remediation program took place between the years of 2015-2018. The site is still under our management.
2009-To Present
Brommaplan, Stockholm- PEAB
Our substrate was used for these downy oaks (Quercus pubescens) during establishment, and the trees are showing exceptional health and vitality in a very challenging streetscape environment. Despite regular salt exposure in spring and pronounced heat stress at the height of the growing season, they are maintaining strong water turgor, high photosynthetic activity, and a very good level of disease resistance.
2024-2025
Skärgårdskuppan - Värmdö, Stockholm
Rehabilitation of contaminated soil media. Over a 3 year period, our product rebuilt soil fertility whilst implementing a foliar feeding nutritional program. Over 3 growing seasons we revived the whole garden, now managed fully by the head gardener.
2023-2025
Norrmälarstrand, Stockholm- PEAB
This green pocket was revitalised using our substrate. Celtis australis, Calycanthus and Heptacodium spp. were transplanted here in 2025 and are all showing strong health and vitality. Even the earlier‑planted magnolias are now benefiting from the improved soil conditions created by the later additions of our substrate.
2025
Reach out to me
If you have any questions, or would like to explore how this product could support your projects, please don’t hesitate to get in touch. I developed this substrate from scratch to honour the importance of trees in our landscapes, with the clear intention that you, your clients, and your trees receive uncompromising quality from the very beginning.
Our product is made to order, with pricing based on volume. I am happy to discuss the needs of your project via email, phone, or a site visit.
Importantly, our substrates are completely peat‑free and do not rely on the excavation of intact ecosystems to source raw materials. Wherever possible, we work with organic feedstocks and suppliers who share this commitment.
Best regards,
Josef
59degrees Soil Architects
Soil architecture for biological function.
info@59degrees.com
© 2025. All rights reserved.