In cooperation with ecomi.io AG, the Primestar Group will start the YOUR TREE nature conservation project in May, initially in three hotels. At the Holiday Inn Hamburg Berliner Tor, at the Hampton by Hilton Freiburg and at the Hampton by Hilton Berlin Alexanderplatz Primestar will present every guest with their personal tree. if the guest waives the daily room cleaning during multi-day stays. As a consequences, the hotel saves valuable water and cleaning agents, if guest rooms do not have to be cleaned on a daily basis.