“Landscape Botany” is a compulsory professional course for landscape architecture majors. It mainly introduces knowledge about the classification, morphological characteristics, ecological characteristics, and applications of landscape plants, playing a crucial role in helping students understand traditional Chinese plant culture and cultivating their learning interests. In the “Internet +” era, guided by the OBE concept, this course combines teaching content with ideological and political education, uses information-based teaching methods, and diversified assessment methods to guide students to learn independently, raise questions, and solve problems. The aim is to cultivate compound talents with practical and innovative abilities who can adapt to social development. Based on this, this article explores the teaching approaches of the “Landscape Botany” course based on the OBE concept in the “Internet +” era for reference.