Western Research and Demonstration Farm
The Western Research and Demonstration Farm became a member of the “USA National Phenology Network” in 2008 when a set of cloned lilacs were planted on June 2, 2008. Phenological observations, or the date specific plant growth stages are reached, will be reported to the network and compiled with other observer data from across the nation. These observations will be used for various purposes, some of these uses may include 1) characterize seasonal weather patterns and improve predictions of crop yield, 2) help predict disease or pest outbreaks, and 3) allow the pursuit of more detailed questions of plant responses to global warming at a national scale.
Iowa State University
Schwartz, Mark D., "History of Lilac Phenological Observations in the USA" (2009). Iowa State Research Farm Progress Reports. 631.