India's trees are flowering earlier than they used to. Geetha Ramaswami and Suhirtha Muhil M have spent 15 years documenting exactly this through SeasonWatch, a citizen science initiative they helped build that has now logged nearly 900,000 observations of tree behavior across India.Geetha is an ecologist and one of the principal researchers behind SeasonWatch. Suhirtha led the development of SeasonWatch's Climate Change Educator Handbook — designed to be age-appropriate, culturally grounded, and taught through the tree outside the classroom window.We ask them what phenology is and why it matters, what 900,000 data points reveal about India's shifting seasons, what happens when a mango tree flowers three weeks early but its pollinators don't follow, and how citizen science turns everyday observation into a data revolution.