Exceptional CO2 absorption
Paulownia absorbs up to 30 tonnes of CO2 per hectare per year — more than any other commercially grown tree. This makes the crop valuable not only as a raw material, but also as an instrument in the climate transition.
Paulownia: The climate tree to build on
Dealin.Green is committed to the transition towards biobased construction. With European support, we are bringing the Paulownia tree from the field to the building site — sustainable, lightweight and climate-friendly.
The construction sector worldwide faces an enormous challenge: less CO2 emissions, fewer fossil raw materials and more circularity. Biobased construction — building with materials that come directly from nature — is a powerful answer to that challenge. And Paulownia plays a leading role.
The Paulownia tree, also known as the Kiri tree, is the fastest-growing tree in the world. It stores vast amounts of CO2, produces lightweight yet strong timber and can be cultivated on virtually any type of agricultural land. This makes it the ideal foundation for a sustainable construction supply chain.
Dealin.Green connects the cultivation of Paulownia by Dutch and European farmers directly to buyers in the construction sector. With support from the European Union, we are accelerating this transition: from knowledge and research to establishing a reliable, scalable supply chain for biobased construction materials.
Why Paulownia is the climate tree
Light yet strong timber
With a density of just 290 kg/m³, Paulownia timber is the lightest commercial wood in the world — yet it is remarkably strong and durable. Builders call it 'the aluminium of timber': ideal for constructions where weight matters.
Short cultivation cycle
The first harvest takes place after 7 to 9 years. What makes it special is that the tree regrows from the same root — up to five times. This makes Paulownia exceptionally efficient compared to traditional timber species.
The role of Dealin.Green in the biobased transition
Dealin.Green acts as the link between farmer and builder. We guide landowners in switching to Paulownia cultivation: from soil analysis and planting to monitoring and sales. At the same time, we are building a reliable supply chain that allows construction companies, project developers and manufacturers to count on a steady supply of certified biobased materials.
Within the EU project, we specifically focus on expanding the knowledge base around Paulownia as a construction material, developing quality standards and demonstrating the technical and commercial viability of large-scale biobased construction projects in Europe.
We believe that Paulownia is the key to a sustainable construction sector. With European support, we can accelerate this transition — for farmers, builders and the climate.
Facts & figures
Biobased construction transition
ThemePaulownia (Kiri)
Central cropUp to 30 tonnes
CO2 absorptionEU funding
European supportThe Netherlands
RegionThe work of Dealin.Green aligns with the European Green Deal and the EU Farm to Fork strategy. With funding from European innovation programmes, we can scale up our approach and structurally strengthen the biobased construction chain.
Funded by the European Union. The content of this publication is solely the responsibility of Dealin.Green and does not necessarily reflect the views of the European Union or the granting authorities.
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