The Conservatoire Botanique National des Hauts-de-France (CBN des Hauts-de-France) is a dedicated organization focused on the preservation and study of botanical diversity in the Hauts-de-France region. It plays a crucial role in conserving local flora and vegetation, including the management of a seed bank that serves as a vital resource for biodiversity preservation. The CBN offers a variety of services that include educational programs, nature outings, and expert consultations geared towards the public and associations, fostering a deeper understanding of plant life and ecosystems.

Visitors can explore their gardens, access libraries, and participate in ongoing research initiatives. CBN also actively engages in citizen science through programs like Digitale2, which collects valuable data on local flora and habitats. With numerous events planned throughout the year, including nature walks and training sessions, the CBN des Hauts-de-France invites community members and businesses to support their mission through donations and partnerships, ensuring the ongoing protection of the region's unique botanical heritage.