Abstract
Four kinds of trees (Abelia grandiflora, Rhododendron oomurasaki, Hedera canariensis, Hedera helix Pittsburgh) produced from same maternal tree in the same place, were planted in a model retainnig wall using the same pot and soil. The retainnig wall was set in the direction of north-south of the place at 10 points Nation-wide. Growth data collected monthly together average climatic data was analysed to study the growth condition of the plants on retainnig wall. As a result, Rhododendron oomurasaki and Hedera canariensis withered in Hokkaido. Hedera helix Pittsburgh withered in Hokkaido, Akita and Okinawa. Correlation analysis using factor scores from the significant weather variables determined from factor analysis, showed that it is possible to predict the D2H of trees in different locations. Moreover, the north facing side of the retainnig wall relatively was superior in growth.
