From small weeds to majestic trees
YourGardenShow Citizen Science debuts as a U.S. based program, relying on a core of North American plants, which we call “Calibration Plants.” These plants are on our "most wanted" list - they grow in different parts of the United States and they are easy for Citizen Scientists to identify. Plus, these plants have distinct and interesting life stages!
Scientists are especially interested in these Calibration Plants because they are important in different ways to ecology, economy and public health. Based on their scientific relevancy, YourGardenShow has divided the Calibration Plants into three initiatives: Pollinators, Allergy Agents and Season Spotting.
Calibration Plants come in all sizes and shapes. By including at least one in your Citizen Science activity or your garden Glog, you can help scientists see the "big picture” of seasonal changes. Thanks for joining us!
Meet the Calibration Plants
Scroll over a plant to see its name and a map of where it grows. For more details, click an image to go to that plant's page.
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Resources
Calibration Plant profiles Learn more about the plants for Citizen Science projects
Calibration Plant highlight Discover more about Forsythia (Forsythia spp.)
Phenology and you Citizen Science and why it matters
Frequently asked questions Get your questions answered here
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Videos
Canada Thistle - Phenology Note 
Lilacs at the Arnold Arboretum 2010 By tubesoleum
Midwestern Red Maple By smithtk2001