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Grant Thompson

Asst Professor

Department of Horticulture
137 Horticulture Hall
Iowa State University
Ames, IA  50011-1100


(515) 294-4813
137 Horticulture


Doctor of Philosophy, Horticultural Biology, Cornell University, 2018
Master of Science, Horticultural Biology, Cornell University, 2014
Bachelor of Science, Horticulture, Iowa State University, 2007
Bachelor of Landscape Architecture, Iowa State University, 2007

Teaching Responsibilities

Horticulture 240 – Trees, Shrubs, and Woody Vines for Landscaping (identification of trees, shrubs, and woody vines; factors influencing the horticultural use of woody plants; and urban ecosystem services considerations of selected plant materials)

Horticulture 322 – Plant Propagation (fundamental principles of sexual and asexual propagation of horticultural plants; hand-on practice in reproducing plants by seed, cuttings, layering, grafting and budding, and tissue culture; and environmental conditions affecting successful propagation)

Horticulture 342 – Landscape Plant Installation, Establishment, and Maintenance (principles and practices for establishing and maintaining managed landscapes; site evaluation; installation techniques; post-planting care; maintenance of established landscape plants; sustainability and ecosystem service considerations)

Horticulture 444 – Landscape Construction Management (principles and practices of residential landscape construction; site evaluation and analysis; project management; landscape estimating; overview of typical construction materials and methods; and hands-on experience with project installation)

Research Focus

Referred Publications

Kaminsky, L.M., Thompson, G.L., Trexler, R.V., Bell, T.H., Kao-Kniffin, J.T. 2018. Medicago sativa has reduced biomass and nodulation when grown with soil microbiomes conditioned to high phosphorous inputs.  Phytobiomes.  Accepted August 29, 2018.

Thompson, G.L., Bell, T.H., Kao-Kniffin, J.T. 2018.  Rethinking invasion impacts across multiple field sites using pale swallowort (Vincetoxicum rossicum) as a model invader.  Invasive Plant Science and Management.  Accepted August 18, 2018

Thompson, G.L. and Kao-Kniffin, J.T. 2016.  Applying ecological theory to the design of urban grasslands.  Crop Science. Vol. 57, May-June 2017.  doi:  10.2135/cropsci2016.05.0433

Thompson, G.L. and Kao-Kniffin, J.T. 2016.  Diversity enhances NPP, N retention, and soil microbial diversity in experimental urban grassland assemblages.  PLoS One 11:  e0155986.