New! Pycnanthemum tenuifolium
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Pycnanthemum tenuifolium

New! Pycnanthemum tenuifolium

Quick Facts
Common Name: Slender Mountain Mint
Hardiness Zone: 4-8S/W Exposure: Sun to Part Shade
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Blooms In: Jul-Sep
Mature Height: 24-36" Spacing: 12-18"
Read our Growing Guide Ships as: 50 PLANT TRAY
Fragrance: Yes Deer Resistance: Yes
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Product Details

Product Details

Bees and other pollinators adore the small, dainty white flowers that appear in clusters atop the stems of well-branched Pycnanthemum tenuifolium, the plant’s needlelike green foliage creating a textural mass that provides contrast amid other pollinator favorites including Echinaceas, Rudbeckias, and Chelone. Commonly called Slender Mountain Mint, Pycnanthemum tenuifolium spreads by rhizomes, but it is far less aggressive than some of its cousins. The foliage and flowers release a refreshing scent of Mint when cut or crushed, and they make marvelously fragrant additions to bouquets.

Native to the US and Canada, these hardy perennials are easy to grow in average soil anywhere that has full sun to part shade. Pycnanthemum is a genus in the mint family, and plants will emit a strong mint-like scent when crushed. Because these plants are vigorous, choose your planting site with care. Use Mountain Mint in a naturalized area or meadow, or in open areas near ponds and streams. Pollinators love it.

For more information on growing and care, click Growing Guide.




The size of the plants we ship has been selected to reduce the shock of transplanting. For some, this means a large, bareroot crown. Others cannot travel bareroot or transplant best if grown in containers. We ship these perennials and annuals in 1 pint pots, except as noted. We must point out that many perennials will not bloom the first year after planting, but will the following year, amply rewarding your patience. We ship bulbs as dormant, bare bulbs, sometimes with some wood shavings or moss. Shrubs, Roses, vines, and other woody plants may be shipped bareroot or in pots. The size of the pot is noted in the quick facts for each item.


We ship our bulbs and plants at the right time for planting in your area, except as noted, with orders dispatched on a first-come, first-served basis by climate zone. We also ship a wide range of containers and planters, tools, supplies, fertilizers, garden wear, garden decor items, as well as indoor decorations like wreaths and dried bouquets when available. Estimated dates for shipping are indicated in the green Shipping Details box for each item. Please supply a street address for delivery. Kindly contact us with two weeks notice, if you'll be away at the expected time of delivery.


We guarantee to ship plants that are in prime condition for growing. If your order is damaged or fails to meet your expectations, we will cheerfully replace or refund it. Please contact our Customer Service Department at 1-800-503-9624 or email us at [email protected]. Please include your order number or customer number when contacting us.



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Growing guide

Growing guide
Print Grow Guide

Latin Name Pronunciation: pic-nan'-the-mum

Pycnanthemum is a genus in the mint family (Lamiaceae). Native to the US and Canada, these hardy Mountain Mint perennials are easy to grow.

SOIL: Thrives in average soil as well as rocky, dry or well-drained soils. Note that Pycnanthemum muticum will thrive in somewhat wet soil.

LIGHT: Grow in full in full sun to part shade locations.

SCENT: Any part of the plant will emit a mint-like scent when crushed.

SPREAD: Plants spread by rhizome and are vigorous, sometimes aggressive growers. However, it is easy to remove and plant elsewhere.

USES: Grow them in herb gardens, borders, naturalized areas, meadows, or in open spaces near streams or ponds. Be sure to pick a site where you can enjoy the long-lasting white flowers that emerge in late summer. The dried seedheads on strong stalks add winter interest, too.