From AF Lorie, I heard about a citizen science enterprise called Project Budburst, which is loads of people picking a few plants to monitor, and inputting the data on their website to be compiled and charted. I picked forsythia and red columbine in my own yard (pictured), and the assignment is to note when they leaf, flower, etc., to help understand the effects of climate change. Phenology: the study of the timing of seasonal biological events like migration, mating, flowering, budburst.