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Your observations of common lilac (Syringa vulgaris) can enhance the decades of lilac phenology observations that have been collected across the United States. Comparing the phenology of these species with that of cloned plants enhances our understanding of genetic and environmental influences on the plants. Observations of the common and cloned species at the same location are especially valuable for and untangling these mysteries. See what volunteers' observations of common and cloned lilacs are revealing.
Tracking a common lilac is easy - you can observe a plant that is already thriving in your yard.
NEW FOR 2015: SPRINGCASTING!
Led by researchers from Cornell University, a team of scientists has expanded these models to predict leaf-out and flowering of lilacs in near real-time. We are calling this springcasting! Learn more »
How well do the springcast predictions perform? We're hoping to find out this year! In the coming months, we'll be letting you know when the models indicate your lilac plants leafed out and flowered and then requesting confirmation of how well the models performed.
How to participate...
1. Select your plants. Identify one or more common lilac (Syringa vulgaris) plants at your site.
3. Sign up to receive our common lilac campaign messaging (in the right sidebar of this page - you may need to scroll back up to see it). You will receive messages approximately every 4-6 weeks during the growing season, providing early results, encouragement, observation tips, interesting links, and campaign-specific opportunities. Don't miss out!
4. Observe your plant(s). Report what you see (yes/no/not sure) on your plant periodically following the instructions for common lilacs. We encourage you to observe your plant(s) 2-4 times a week, especially in the spring, when things are changing rapidly. However, we welcome any observations you can contribute.
5. Report your observations. Periodically log into your Nature's Notebook account and transfer your observations from your paper data sheet into the online reporting system. Alternatively, you can enter your observations directly using our Android or iPhone smartphone and tablet apps.