They grow on the sunward slopes of the Chiuhu Plateau, with high humidity and wide temperature variations between day and night, plus slightly acidic red soil. The favorable climate and geography have made the area the largest producer of chrysanthemums in Taiwan.
位處向陽坡面的九湖台地，日夜溫差大、溼度高，加上土質為略帶酸性的紅土，在天時地利下，成為全台最大的杭菊產區。