Ornamental Horticulture Assurance Scheme (OHAS)
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Understand how the OHAS Grower Standard aligns with the Plant Healthy Certification Scheme.
Keep it Clean - Poster
Simple, clear steps you can follow to help prevent the spread of pests and diseases when gardening, visiting green spaces or moving plants.
What is Biosecurity?
Learn what biosecurity means and how you can help protect trees and woodlands in the UK through simple, practical actions, including reporting concerns via TreeAlert.
Pest signs & symptoms calendar
A month-by-month guide showing which pest and disease signs to look out for throughout the year, helping you stay alert and informed.
Pest & disease posters
Alphabetical posters to help you recognise common tree pests and diseases and understand when something doesn’t look right.
OHAS Grower Standard and Plant Healthy scheme alignment - FAQs
Please see the link to a set of frequently asked questions about the alignment of the OHAS Grower Standard and Plant Healthy Certification Scheme.