International Day of Plant Health – 12 May

International Day of Plant Health (IDPH) is a United Nations-recognised observance held annually on 12 May. It raises global awareness of the critical role plant health plays in ending hunger, reducing poverty, protecting biodiversity and ecosystems, and supporting economic growth. It serves as a lasting legacy of the International Year of Plant Health 2020.

Each year, IDPH features a dedicated theme and focus topic. In 2025 the theme is “The Importance of Plant Health in One Health”, highlighting the vital role healthy plants play in supporting the interconnected health of humans, animals, and the environment.

This year, we’re proud to mark 25 years of PHA working across industry and government to strengthen Australia’s plant biosecurity system. Australia has built one of the world’s most robust biosecurity systems, keeping our crops safe, securing international trade, and supporting farmers, and communities. This milestone reflects decades of collaboration, innovation, and resilience and highlights the critical role biosecurity will continue to play in ensuring a sustainable future for all Australians.

Our close engagement with agricultural industries and scientific communities—those who produce food, steward environments, and contribute to animal and human health—the 2025 One Health theme is particularly relevant. It is a timely reminder that plant health is foundational to achieving broader One Health outcomes.

Keeping plants healthy is essential for life on earth, and all of us have a role to play. Join us for the global call to action on 12 May!

Visit the official International Day of Plant Health | FAO