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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

25 Feb / 2016

Plant treasures in nature, for gardens and the urban environment

A record number of participants at the ISU International Perennial Plant Conference in Grünberg

06 Oct / 2015

50 years of International Hardy Plant Union:

A passion for plants and active perennial enthusiasts

06 Oct / 2015

ISU means to me...

Members talk about their relation to the ISU

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