She is not completely immune, the boxwood moth remains a risk, but for a place like Versailles this is a big difference.
“As for Versailles, they can only use Buxus plants, because it is a historic garden. They have to continue to work with boxwoods. And that is why it is just interesting to use that disease resistant species there too.”
The boxwoods were given a place on the parterre du Midi, originally designed for Marie-Antoinette. Willaert hopes that they can continue to work together in the future.