An endowment is a donation to the assets of Plant-for-the-Planet. A sub-foundation makes sense, for example, if you would like to support a specific cause, but do not want to set up your own foundation for this purpose and want to promote it effectively with little effort of your own. In contrast to a donation, sub-foundations do not have to be used promptly, but are permanently added to the foundation's assets. An endowment can also be any small or regular contribution which, like a donation, is tax-deductible.

Through your endowment, Plant-for-the-Planet can, among other things, acquire land for further reforestation and forest protection in cooperation with its Mexican sister organisation.

In principle, endowment loans are also possible.