Research is also being conducted on green tea production by the Department of Agriculture and Food and the Manjimup Horticultural Research Institute. Japanese experts identified Manjimup as a suitable area for growing green tea based on "its climate, 'clean green' image, fertile soils and good rainfall". The Manjimup/Pemberton area is at a similar latitude to the prime tea-growing area Shizuoka in Japan, and shares similar acidic soils and average annual temperature. Trials of ten varieties of green tea will determine which will be the most successful.