This study aims to review the research trends concerning landscape plants and to foresee the next trends in Korea. The research scope was limited to the articles listed in the Journal of Korean Institute of landscape Architecture. The number of articles related to landscape plants was calculated for five-year-period over 30 years and for groups of ten issues from 1973 until 2003. Of all the related articles, subjects or materials, method types, and contents were categorized and analyzed for groups of ten issues from 1973 until 2003. The results, of the research were as follows. Of 1,018 articles in total, there were 930 paper-type, 52 discourse-type, and 36 remains. Of 212 related articles, there were 205 paper-type, 3 discourse-type, and 4 remains. Of 232 subject articles, there were 115 woody-related, 47 herbaceous-related, and 33 soil-related articles. Of 221 method articles, there were 89 experiment, 54 field research 33 planting articles. Of 243 content articles, there were 47 investigation, 36 construction, 34 environmental effect, and 33 maintenance articles.