Last picnic day, after weaving flower crowns, I ask myself"What if we run out of trees and braches?" That question bloomed into my mission. Today I’ll show how planting willow trees, reusing bottles, and tiny daily choices grow into Sustainable Development—big words that just mean loving our planet like a best friend. Let’s help flowers bloom and willows grow together! I am Yu Xinyi, a positive and cheerful girl. I come from Shangqing Road Primary School in Qingdao. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx