Nature’s Notebook data reveal how climate impacts flowering in eastern redbud trees
The appearance of bright pink flowers on eastern redbud trees is a reliable indicator that spring has arrived in the eastern U.S. However, the timing varies across the species’ range and not much is understood about the climate conditions that trigger flowering. A team of researchers us... Read more
Observer Profile: Finding Connections through Nature - Tree Spotting in Urban Boston
In this Observer Story written by UCLA student Chloe Cheng, we learn about Nature's Notebook observers Beth and Kevin Mahar. Beth and Kevin are long-time observers with the Tree Spotters at the Arnold Arboretum in Boston, Massachusetts. Read more
Join us at Botany 2026 in Tucson!
Are you attending the Botany Meeting in Tucson this August 1-5? We'll see you there! Come meet USA-NPN staff and students at our booth and talk to us about our new Nature's Notebook app (due out later this summer), the phenology data we have available, how to implement phenology monitor... Read more
Download Nature's Notebook
Track seasonal changes in plants and animals throughout the year with Nature's Notebook.
To get started, download our Nature's Notebook app for Android or iPhone, or set up your account online.
