The presenter will discuss uses and attributes of fifteen drought, heat, and insect and disease resistant tree species that are currently under-planted in Southern California. She will discuss what insects and diseases they are specifically resistant to and tree species that should no longer be planted due to their invasive characteristics negatively impacting the health of surrounding plants. The presenter will demonstrate how to use selectree.org, WUCOLS, and calscape.org search engines to identify other tree species suitable for a wide variety of climates and microclimates. These include trees suitable for small spaces, under power lines, in poor quality soil, and other adverse conditions.
1. Learn what species of under-planted drought, heat, and pest resistant landscape trees area available that are suitable for Southern California
2. Learn how to use reputable search engines that regularly update information on these recommended under-planted tree species
3. Learn what invasive tree species should be avoided
Janet Hartin is an Area Environmental Horticulturist with University of California Division of Agriculture and Natural Resources (UC ANR). Her expertise includes drought-resistant trees, minimum irrigation needs of landscape plants, pest prevention through proper plant selection and care, and use of organic materials as mulches and soil amendments. Her current research projects include identifying tree species that withstand harsh inland and desert environments and urban heat islands and the impact of mulch on the landscape tree health and performance.
Janet enjoys working in teams, and both projects are in partnership with other academics and staff from UC ANR and the USDA Forest Service. Janet is a sought after speaker and regularly presents talks at local, regional, national, and international green-industry events and conferences. While she has published her work widely in scientific as well as trade journals, her passion lies in sharing research-based information directly with members of the public and private landscape and nursery industry.