Tennessee Smart Yards Native Plants
A comprehensive database of Tennessee native plants
Purple Giant Hyssop
 Photo Courtesy Prairie Moon Nursery http://www.prairiemoon.com/  Photo Courtesy of Marty McWhirter  Photo Courtesy of Marty McWhirter  Photo Courtesy of Marty McWhirter  Photo Courtesy of Marty McWhirter |
Purple Giant HyssopAgastache scrophulariifoliaFull to part sun, moderately wet to moderately dry moisture level, sandy soil. 6 ft. height, blooms late summer to fall, purple flowers.Germination Code: C(60), DNative Region: Only in Polk and Carter countiesDesignated a “Threatened Species” in Tennessee. Herb in the mint family. Prefers moderately wet to medium moisture level and is found growing naturally in rich woodland sites with dappled shade, woodland borders, meadows, thickets, outer edge of flood plains and upland woods. Popular ornamental plant. Relatively tall height makes it a good selection for background along a fence. Flower clusters persist throughout winter. Requires soil disturbance for successful establishment as well as regular maintenance of clearings around the planting to eliminate competing vegetation. Otherwise populations tend to be short-lived because easily outcompeted by other plants. Attracts a wide range of bees and butterflies.flower;sun;wet;sand
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Tennessee Smart Yards Native Plants 
I’m in Knoxville and had a volunteer one of these come up in my courtyard. Finally figured out what it is. It’s just now starting to bloom. I watered it occasionally through the drought we had, even though I had no idea what it was at that time. I’m really thrilled to have this perennial! Mine is lush and beautiful. I have some good photos if you’d like to use them here. I wish I could find out more about medicinal purposes.
We would love to have one of your photos to post. Could you e-mail it to me at joylarry@btes.tv? So glad you figured out what it is! Joy Stewart
I am looking for a source for seeds. My meadow has some of these but I want to propagate more. Please email me if you know a source. Commercial wildflower seed suppliers welcomed to solicit.
My very favorite source for seeds is Prairie Moon Nursery in Minnesota. They have a huge selection of over 400 species as I recall. Although they are in Minnesota, the majority of seeds that they carry are also native to Tennessee. You just need to doublecheck before you order.