Genießen Sie eine familienfreundliche Führung durch die Baumschule, bei der auch die Kleinsten viel entdecken können.

LvE Symposium 2025
Green is the new grey!

User-related presentations and a tour of the Lorenz von Ehren nursery will characterise this one-day seminar on the outskirts of Hamburg.

Let's talk and listen to each other, exchange arguments and take a look into the future.

Expert discussions and a lecture by Prof. Dr. Mojib Latif will round off the event.

Register now, places are limited!

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LvE Symposium 'Green is the new grey'

Hamburg

18 September 2025

Important information!

Number of participants: max. 300 persons
Participation fee: € 149,- p. P. (incl. VAT and catering as well as two different excursions on Friday)

Main topics: Green urban planning, green for health, sponge city, use of woody plants

Organiser: Baumschule Lorenz von Ehren

Venue:
Baumschule Lorenz von Ehren GmbH & Co. KG
Maldfeldstraße 4
21077 Hamburg
phone: 0049 (0)40 761 08 0
LvE@LvE.de

Please bring: weatherproof clothing and sturdy shoes

Chamber of Architects: The event is registered with the Chambers of Architects of North Rhine-Westphalia, Lower Saxony, Schleswig-Holstein, Hamburg and Bremen as an advanced training event.

Cancellations can be made free of charge up to 14 days before the event. From 14 days before, no refund of the participation fee in case of cancellation or no-show.

Click here to register:

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Symposium, 18.09.2025

9:30 - 10:00 a.m.
Admission and get-together

10:00 - 10:30 a.m.
"Green is the new grey" Welcome by Bernhard von Ehren and Sabine Tietz, Lorenz von Ehren Nursery

10:30 - 11:00 a.m.
"A green revolution for our health"
Prof. Dr Jan Dieterle, Landscape Architect, Frankfurt University of Applied Science (AUS), Sustainable Open Space and Urban Design

11:00 - 11:30 a.m.
"New communities - the Oberbillwerder climate-ecological loop"
Martin Schmitz, landscape architect, competition manager and managing director of Atelier Loidl, Berlin

11:30 - 12:00 a.m.
"Nature-based solutions for climate change adaptation in cities"
Prof. Dr Nadja Kabisch, Leibniz University Hannover, Physical Geography and Landscape Ecology

12:15 - 14:00
Picnic in the tree nursery fields

14:00 - 14:30
"Green fascinates - The lighthouse project Bunker St. Pauli in facts and figures"
Marco Schmidt, Research Associate, Institute of Architecture at the Technical University of Berlin

14:30 - 15:00
"Passion ‘Big Tree‘ – interesting facts from the tree nursery"
Bernhard von Ehren, Managing Director of Lorenz von Ehren Nursery, Hamburg

15:15 - 15:45
Break - coffee & communication

15:45 - 16:15
"Sponge city for trees and the transformation of our cities"
Daniel Zimmermann, landscape architect, partner 3:0 Landschaftsarchitektur, Vienna

16:15 - 16:45 Uhr
"How to create a place of longing"
Henning Breimann, landscape architect, Breimann&Cie, Hamburg

Key Note

17:00 - 17:45
"Countdown. Our time is running out - what we can still do to counter the climate catastrophe" Prof. Dr. Mojib Latif

from 18:00

Barbeque and networking on the lakeside terrace

- End of the event -

Programme subject to change

Green is the new grey!
18 September 2025 - Symposium

Prof.Dr. Mojib Latif

is a professor at Kiel University and works at the GEOMAR Helmholtz Centre for Ocean Research, where he heads the Ocean Circulation and Climate Dynamics research field. He has also chaired the German Climate Consortium since 2015, has been President of the Club of Rome Germany since October 2017 and President of the Hamburg Academy of Sciences since January 2022.