How can trees be as cheap as 0,30€ /tree?

Tree-Nation lets the planters determine how much it costs to plant a tree.

At Tree-Nation we let the planters from each project determine the fair price of a tree. For this reason, you will find different prices between projects. Prices will vary depending on the type of project, location, maintenance costs, cost of living, and planting method.
As much as we would like to offer a closed price for trees, we need to take into account the different living expenses of each location as well as the various project sizes and numbers of team members in the fields. The size of the project is important, because the larger the project, the more trees it plants, the more it will be possible to make economies of scale and reduce the cost per tree.
Therefore, it will be more expensive to plant a tree in Australia than for example in Madagascar.