Differential yield and nutrients of Hibiscus sabdariffa L. genotypes when grown in urban production systems

Urban Farm DB summary

This study grew seven genotypes of Hibiscus sabdariffa L. in green roof, field row, and high tunnel systems in and near Washington, DC, to compare leaf and flower yield, nutritional differences, and insect pest susceptibility. Genotype PI 286316 produced abundant flowers, particularly in high tunnels, while leaf production was highest in field rows despite frequent Popillia japonica attacks. PI 273388, PI 275414, and green hibiscus yielded the most leaves, and genotypes showed nutrient differences regardless of the production system. The locally adapted green hibiscus performed well across systems, was least attacked by pests, and had higher nutrient levels, demonstrating H. sabdariffa's suitability for temperate urban systems.