I thought some people might be interested in participating in Project BudBurst.

Join us in collecting important climate change data on the timing of leafing and flowering in your area through Project BudBurst! This national field campaign targets native tree and flower species across the country. With your help, we will be compiling valuable environmental and climate change information around the United States.

They have resources for teachers as well, and if you were a science teacher, that might be fun! Of course only if it fit in the curriculum, I suppose.

barrel cactus in bloom