Pycnanthemum muticum has a native range from Texas to Michigan, east to Maine and south to Georgia. Very attractive to pollinators, a 2013 study at Penn State Extension Service showed that it was the most popular pollinator species tested, being visited by at least 78 insects in a few minutes time. Clustered Mountain Mint is not as aggressive as Virginia Mountain Mint It may need to be planted in a large container to control its spread. It is a relatively quick spreader with shallow rhizomes that may travel across the soil surface as well as below. Its fragrant leaves are sometimes rubbed on the skin to repel mosquitoes. Also called Clustered Mountain Mint, Pycnanthemum muticum has a compact habit that distinguishes this member of the Mountain Mint family. The individual blooms open gradually over a period of six to eight weeks in late summer to early fall. Its bloom clusters consist of tiny white to lavender flowers that have a silvery cast. Pycnanthemum muticum is a 2’-3’ tall, upright plant with silvery green, oval leaves that have sharp tips. For example: if a plant is rated for zones 7-10, it would be a tender perennial in zone 7. It's best to plant these in spring or early summer, and preferably in a protected area (such as the South side of building). Perennials planted in the coldest zone listed are considered "tender perennials", and may not overwinter in a severe winter. They are all considered "perennial" if planted within their preferred zone range. Our plants are grown on our 30-acre outdoor nursery in Virginia (available by mail-order only). We are not able to offer warranties or extended guarantees on plants due to the sheer number of variables that can affect their growth and survival. If they are damaged or if you have concerns, please inform us right away by emailing Even if you are planning to wait and see if it recovers, we need to document the damage on your order. Our plants are guaranteed to arrive safely in a suitable condition for planting. The plants are not guaranteed to be blooming when they arrive, and the foliage may need to be trimmed before shipping to fit them in the box safely. ![]() The rare exception is our slightly smaller 3.5" inch pot, which will be labeled on a few product pages. ![]() Rare Roots ships live, growing plants in one-quart pots all over the continental US.
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