Wu is an avid gardener, and epiphyllums fill her home with their fragrance. Inviting students home to enjoy them with her, she would give a leaf to each student, urging them to go home and "experiment on planting it."
喜歡園藝的她，家裡曇花開得滿室馨香，會找學生來共賞，而且分給每位研究生一片葉子，鼓勵他們回家「實驗栽種」。