star Be part of April 1–30! star
Be a part of a national effort to monitor the effects of climate change! Phenology is the timing of life cycle events, for example: when plants first bloom, birds migrate, and insects hatch--it's like nature's calendar. Changing phenology is a is a hot topic in climate change research because it's a key indicator of climate change. The Arboretum Phenology Walk gathers data on seasonal changes in plants including when they leaf out, flower and form fruit. Help us monitor 18 permanently marked California native plants while touring the beautiful Native Plant Garden. Your data will be uploaded to the USA National Phenology Network’s database for use in research, policy and land management.