In a clearing in the Amsterdamse Bos, a forest on the outskirts of the Dutch capital, is a “tree hub” where hundreds of saplings, among them hazelnut, sweet cherry, field maple, beech, chestnut and ash, are organised by type.
The idea behind it is simple: every day unwanted tree saplings were being cleared and thrown away when those young trees could be carefully collected and transplanted to where they are wanted.