Bartow, A. 2015. Propagation protocol for production of container (plug) Agastache urticifolia (Benth.) Kuntze plants 10 inch3 conetainer. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://npn.rngr.net/propagation/protocols [Accessed 2019 August 19].