Coffee is made from roasted (=lightly burned) coffee beans, the seeds of (stone) fruit of the coffee plant. Which can be found in the equatorial zone of e.g. Mexico, from Guatemala to the Philippines.
koffiefilterSo in our regions you will have to work with substitutes.

Caffeine has been identified in more than a hundred species of plants. The most cultivated are the seeds (beans) of the berries of the coffee tree (Coffea arabica and Coffea canephora, variety robusta), the leaves and leaf buds of the tea bush (Thea sinensis, also known as Camellia sinensis), the nut of the kola tree (Cola acuminata), the seeds (beans) of the fruit of the cocoa tree (Theobroma cacao) and the leaves and twigs of the evergreen tree ’Ilex paraguarensis’ where in South America yerba maté is made with.
Plants may make it as a natural pesticide against the larvae of mealworms and mosquitoes. Apparently closer to us there are not (yet?) found significant amounts of caffeine in fruits or plants.

The tubers of nature almond (Cyperus esculentus) can be roasted and grinded to use as cocoa or coffee substitute.

‘Drinking coffee prevents you to sleep. And vice versa.’ (Philippe Geluck)

Caffeine: One of the four basic food groups.