Thomas Ogren

Thomas Ogren is an American horticulturist known for his work on the relationship between plants and allergies. He developed the concept of "Allergenic Plant" ranking, which classifies plants based on their potential to trigger allergic reactions in individuals. Ogren's research focuses on promoting allergy-friendly landscaping by recommending the use of less allergenic plants in gardens and public spaces. He has authored several books, including "Allergy-Free Gardening," which provides practical advice for creating healthier environments by reducing allergenic plants. Ogren's work aims to improve public health and enhance outdoor experiences for allergy sufferers.