有意栽花花不发，无心插柳柳成阴

yǒu yì zāi huā huā bù fā , wú xīn chā liǔ liǔ chéng yīnyouyizaihuahuabufa,wuxinchaliuliuchengyin

1. lit. you plant a garden and the flowers do not bloom, you poke a stick in the mud and it grows into a tree
2. fig. things do not always turn out as one would expect
3. well-laid plans may fail, and success may come where you least expect it

Study it in Yanamino