Short Toothed Mountain Mint
Pycnanthemum muticum in bloom
(Photo courtesy of NetPS Plant Finder)
Height: 3 feet
Spacing: 20 inches
Hardiness Zone: 4a
Other Names: Big Leaf Mountain Mint, Clustered Mountainmint
An aromatic, summer bloomer that produces white flower clusters with a pinkish cast, on sturdy upright stems; blooms persist from summer into fall; large leaf bracts just below flowers are silvery-white; an excellent border or container plant
Short Toothed Mountain Mint has masses of beautiful clusters of white flowers with silver bracts at the ends of the stems from mid summer to mid fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its fragrant pointy leaves remain green in color throughout the season. The fruit is not ornamentally significant.
Short Toothed Mountain Mint is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
This is a relatively low maintenance plant, and should be cut back in late fall in preparation for winter. It is a good choice for attracting bees and butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.
Short Toothed Mountain Mint is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
- Container Planting
Planting & Growing
Short Toothed Mountain Mint will grow to be about 3 feet tall at maturity, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 20 inches apart. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 5 years.
This plant does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is native to parts of North America.
Short Toothed Mountain Mint is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.