If you live a far away and you are unable to visit the forest regularly from the end of March, it is best to follow the progress of the bluebell on this website.
The 7 to 10 days following the blossoming of the beech leaves are the most beautiful in the wood. The purple blue of the bluebells combined with the transparent bright green of the young beech leaves give a magical effect to the forest. The sunlight still reaches the flowers through the leaf canopy, but a little less each day.
May the first used to be the top weekend for the bluebells, but this hasn’t been the case for a number of years (although it was in 2013 again). Nowadays, the beeches are already fully in leaf on 1 May so the sun can’t reach the flowers, the forest is darker and the hyacinths’ colour has changed from purple blue to grey blue.
And it is exactly the deep purple blue carpet that gives the Hallerbos, “the blue forest”, its irresistible attraction.