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International Hardy Plant Union
Servatiusstraße 53
D 53175 Bonn

Telephone: +49 228 81002 51
E-Mail: info@isu-perennials.org

ISU-Summer Days 2026

Summer Days 2026

The International Perennial Union invites
you to Summer Days 2026 in Sweden.

From August 16-19, you can meet your colleagues from Europe and overseas in nurseries, parks, urban green spaces, botanical gardens, the Swedish Gene Bank, and the Trial Field with over 50 new perennials.

And you might even encounter a moose.

Travel with us and discover the world of Swedish perennials.

 


 

Summer Days 2024

In the botanical garden of the city of Angers, the almost 60 participants wore the ISU Summer Days 2024 T-shirt. (Foto: ISU/Banse)
In the botanical garden of the city of Angers, the almost 60 participants wore the ISU Summer Days 2024 T-shirt. (Foto: ISU/Banse)

ISU Summer Days 2024: from production to show gardens

The International Perennial Union offered the almost 60 participants of the Summer Days from August 11-15 in Angers, France, a very diverse program. Perennial experts from 12 European countries and the USA met there from variously structured companies and enjoyed the professional exchange as well as the typical local culture.

 


 


 

Albums

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