Linus ‘Rory’ Schmitz

Graduate Research & Teaching Assistant · Dept. of Plant and Environmental Sciences Clemson University

Rory is a Ph.D. candidate in Plant and Environmental Sciences at Clemson University. Their research focuses on the biology and management of Phytophthora nicotianae, a destructive plant pathogen affecting ornamental crops, including lavender. Their dissertation explores early pathogen detection through a novel sampling method, host specificity, fungicide resistance, and sustainable strategies for managing Phytophthora root and crown rot in lavender production. In addition to their research, Rory serves as a teaching assistant for introductory plant pathology and has held leadership roles in several graduate student organizations. They are passionate about advancing practical, science-based solutions that support sustainable ornamental crop production while fostering the next generation of plant scientists.

Hana Tisserand

Co-founder · Tisserand Institute

Hana Tisserand, co-founder of the Tisserand Institute and one of the most respected voices in evidence-based essential oil education. Hana's practical, science-focused approach has helped thousands better understand the safe and effective use of essential oils, and we're thrilled to welcome her to Savannah.

Dr. Jeffers

Professor · Clemson University

Dr. Jeffers is a Professor of Plant Pathology and an Extension Specialist at Clemson University in South Carolina with statewide responsibilities for diseases of ornamental crops in nurseries, greenhouses, and landscapes, and he also works on diseases of trees in both urban and natural ecosystems. Currently, his research focuses on diseases caused by species of Phytophthora. He is interested in the biology and ecology of Phytophthora species, pathogen detection, identifying sources of inoculum, and integrated disease management. He also teaches Principles of Plant Pathology to undergraduate students in fall semester each year. Dr. Jeffers and his team have been investigating Phytophthora root and crown rot (PRCR) on lavender since June 2015. This research started with one grower in South Carolina and has expanded into a nationwide project by working with lavender growers around the country and collaborating with USLGA. Along with students and staff, they have identified the species of Phytophthora causing PRCR and the species of lavender affected by this disease. They also are investigating management options and methods to improve pathogen detection in plants and soil.