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International Hardy Plant Union
Godesberger Allee 142-148
D 53175 Bonn

Telephone: +49 228 81002 51
Fax: +49 228 81002 77
E-Mail: info@isu-perennials.org

SUMMER DAYS

Every 2 year, we organise a Congress, now called 'the Summer Days', as a real meeting point for all colleagues. During these days the delegate – meeting takes place.

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WINTER DAYS

The aim of this conference is to promote international contacts in the Perennial Plant Industry and to provide an opportunity to exchange knowledge and expertise in an inspiring atmosphere.

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BOTANICAL EXCURSIONS

The excursions of the ISU have a long tradition. Since its foundation there have been several excursions. They either go to botanically interesting regions and give good inside view of our perennials in the wild.

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Recent news

12 Jul / 2017

ISU excursion to Kyrgyzstan impresses perennial gardeners

Discover species-rich flora and endemic specialities again in 2018

20 Feb / 2017

Gardens and gardeners as a contribution to peaceful co-existence

10th International Perennial Plant Conference
receives more international visitors than ever before

22 Aug / 2016

ISU commission for plant analysis presents six new perennials particularly suitable for the garden with the ISU Award

Jonas Bengtsson elected President of the ISU commission for plant analysis

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