Abstract
This data set includes four-years (2020-2023) of demographic data (survival, growth, reproduction) for Camassia quamash at the Camas Prairie Centennial Marsh near Hill City, Idaho, USA. The four-year data set also includes individual-level annual measurements of soil moisture, C. quamash percent cover, percent cover of all live vegetation, and percent cover of surrounding non-native Alopecurus arundinaceus biomass and necromass. The data was collected in approximately 1x1 m plots with each C. quamash plant permanently marked. The dataset includes plots across a hydroperiod gradient.