The National Phenology Network Coordinator: Dr. Mark Schwartz University of Wisconsin Milwaukee

Facilitate collection and dissemination of plant phenological data across the US Support research on interactions between plants and lower atmosphere, and long- term impacts of climate change. National Phenology Network Mission

NPN: Lilac Observations Syringa chinensis 'Red Rothomagensis'

Lilac Phenological Observations: 1. First leaf 2. 95% leaf 3. First bloom 4. Full bloom 5. End bloom

First Leaf widest part of leaf past tips of brown bud scales Full Leaf 95% of buds open

First Bloom at least 50% of flower clusters on the plant have at least one open bud at least 50% of flower clusters have all buds open Full Bloom

End of Bloom 95% of flowers have withered or dried and floral display has ended.