This week (11-17 May) is National Plant health week, and we are celebrating our plant health heroes.
From cultivating healthy crops and woodlands to safeguarding our treasured gardens, parks, and natural ecosystems, plant health professionals are the unsung guardians of the nation’s green foundations.
In this post, we’ll shed light on the importance of this work and the networks which are key to plant health protection.
Why plant health matters more than ever
Healthy plants underpin almost every aspect of our lives.
They provide the food we eat, the air we breathe, the materials we build with, and the landscapes that support biodiversity and wellbeing.
Yet plant health is under increasing pressure from:
- climate change, which alters pest and disease behaviour
- global trade, enabling pests and pathogens to travel faster and further than ever
- invasive species that threaten native trees, crops, and habitats
An outbreak of a serious plant pest or disease can devastate farming communities, blight urban and rural landscapes, and cost millions of pounds in economic damage.
Protecting plant health is not just an environmental issue - it’s about our food security, biosecurity, and national resilience.
Key to this, is having an expert who can advise the Government on these matters.
The role of the Chief Plant Health Officer
This mission is led with dedication and vigilance by Nicola Spence, our Chief Plant Health Officer (CPHO).
The CPHO acts as the UK’s foremost authority on plant health threats. The role brings together scientific evidence, policy development and operational response, ensuring that emerging threats are identified early and managed effectively.
The CPHO advises government ministers on regulation and our response to emergencies and outbreaks, as well as working with scientists and international partners to prevent harmful organisms from entering the UK in the first place.
When diseases such as Sweet Chestnut Blight or pests like the Emerald Ash Borer threaten the countryside, the CPHO’s quick decisions are crucial to how the UK responds.
An ecosystem of collaboration
The Chief Plant Health Officer is supported by a vast network of professionals. This includes the Animal and Plant Health Agency checking plants and plant products for signs of pests or disease. Their careful, detailed work is often the first line of defence.
The Forestry Commission work across woodlands, and urban trees to monitor impacts on the ground and support long term resilience in forests and landscapes.
Some of the most crucial work happens not out in the field, but in laboratories with test tubes and microscopes. Defra’s research community - including Forest Research and FERA - support decision making with the latest evidence, from diagnostics and surveillance to modelling of future risks.
In the words of Nicola Spence, Defra Chief Plant Health Officer:
“What makes this role so rewarding is the people behind it - exceptional colleagues, dedicated partners, and plant health professionals across the UK who work tirelessly to protect our trees and plants. It is a privilege to be part of such a purposeful mission.
National Plant Health Week gives us the opportunity to recognise and celebrate these plant health heroes. Much of this vital work happens out of sight, yet it underpins the health of our environment and the many benefits that plants bring to people, places and nature.
Every inspection, every piece of analysis, and every conversation with land managers or the public plays a part. Together, these daily actions make a truly remarkable difference.”
National Plant Health Week
Each year over 30 organisations committed to protecting the health of the UK’s plants and trees come together to celebrate National Plant Health Week. This is a collaborative programme aimed at raising awareness of how to keep our plants healthy, and to inspire people to get involved.
As part of this week, the Chief Plant Health Officer, Professor Nicola Spence, will be hosting a plant health ‘walk and talk’ event in on Friday 15 May in York, taking a group around some of the glorious trees in the city's Museum Gardens, famous for their collection of, shrubs, perennials, and bulbs.
If you plan to attend, please email Amanda.mitchell@defra.gov.uk to allow us to gauge numbers. To join the event, we ask you to meet at the entrance to the gardens on Museum Street at 1:00pm.
To find out more and see how you can join in wider activities, visit Plant Health Action.
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