Doff Portland Limited, founded in 1946, is the UK’s largest independent manufacturer of insecticides, weedkillers and garden care products and you can browse the DeWaldens Garden Centre range online and in-store. As an ISO and BRC accredited company, it is able to provide assurance and inspire confidence in the quality of its products. Expertise in plant protection and biocidal product registration ensures fully traceable production and delivery from development through to the final stage.