Greenhouse screening of plants using a variety of combinations of amendments to provide information for a full-scale on-site revegetation study. This dataset is associated with the following publication: Johnson, M., D. Olszyk, T. Shiroyama, M. Bollman, M. Nash, V. Manning, K. Trippe, D. Watts, and J. Novak. Designing Amendments to Improve Plant Performance for Mine Tailings Revegetation. Agrosystems, Geosciences & Environment. John Wiley & Sons, Inc., Hoboken, NJ, USA, 6(3): e20409, (2023).