If you want to contribute to the Hortus in a different way, you can also adopt a tree. In this way you support some of the oldest trees in Leiden. Our Golden Chain dates from 1601 and is in need of special care. Most of the trees in the Hortus are 200 years old, or even older.
For all the posibilities concerning the adoptation of trees, you can contact the Foundation of the Friend of the Leiden Botanical Garden via Hortusvrienden@hortus.leidenuniv.nl