Hallo Baum

Hello Tree connects you with your neighbors: the trees on your street.

(In selected cities, based on data from municipal tree registers)

Stand next to your tree and tap the "Hello Tree" button!

Then your tree will tell you who it is and what it does for you.

The "Hello Tree" project aims to raise awareness of the performance and importance of our urban trees. To this end, publicly available data on urban trees and soil conditions were compiled, and various characteristics of each tree were calculated from this data. You can now access this information via the app while taking a walk through the city.

The app currently works in many cities in Germany and Austria, including:
- Berlin
- Dortmund
- Dresden
- Duisburg
- Frankfurt am Main
- Gelsenkirchen
- Göttingen
- Graz
- Halle (Saale)
- Hamburg
- Iserlohn
- Cologne
- Leipzig
- Linz
- Magdeburg
- Norderstedt
- Rostock
- Vienna
- Würzburg

The integration of more cities is planned.