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Ornamental Horticulture Assurance Scheme - OHAS

OHAS is the ornamental horticulture assurance scheme of the Horticultural Trades Association.

Introducing OHAS

Quality assurance

OHAS is the only certified scheme in the UK solely relevant and dedicated to ornamental horticulture. Unlike other generic quality schemes, OHAS standards are specifically designed to meet the specialist needs of our industry. They are managed by a dedicated committee and team which means the standards are designed for and can react to specific technical requirements within our industry. 

Scheme Certification - internationally recognised

The Scheme certifies growers, packers and growing media manufacturers to OHAS Standards through independent audits carried out by a UKAS accredited certification body (NSF Certification Ltd) against internationally recognised criteria. This process ensures OHAS members meet and operate at the highest standards of professionalism required by UK and international marketplaces.

Inspection - high professional standards

To become certified, OHAS Members are audited annually.  This gives buyers in the supply chain complete confidence in both product and service and means OHAS Members are committed and confident they are up to date with the latest legislation and best practice.

OHAS Newsletters

OHAS Newsletter December 2023

Click below to download the OHAS Newsletter from December 2023

OHAS Newsletter May 2023

Click below to download the OHAS Newsletter from May 2023