Invasive rhododendron presents a unique problem to the managers of any habitats it colonises. If left untreated, this aggressive weed can rapidly occupy the entire understorey of a range of woodland types, open spaces within woodlands and heathland habitats. This Practice Guide provides guidance on managing and controlling rhododendron in invaded habitats, including information on site survey, prioritising areas for treatment, selecting the most effective control techniques, and monitoring of treated areas.