USA NPN National Phenology Network

Taking the Pulse of Our Planet

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Project BudBurst

Contact email: 
Sandra Henderson -

Participants make valuable phenological observations for use by educators and scientists interested in understanding the impacts of climate change on plants.  Project BudBurst engages individuals in making careful observations of a variety of phenophases including first leaf, first flower, first pollen, first ripe fruit, and leaf color change. Project BudBurst targets 75 plant species but will accept data on any plant species.