The wild bluebell hyacinths, however, are all natural and have been for centuries.
The forest has other riches.
In spring its full of birds - blackcap warblers, wrens and nuthatches are the loudest.
There are red squirrels amongst the pines, buzzards in the clearings and tadpoles in the ponds.
Sources:Eupedia/Bois de Jasmin/Discovering Belgium, viaMy Modern Metropolis