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Pycnanthemum tenuifolium - Slender Mountain Mint (photo credit: Missouri Botanical Garden)

Perennials

Pycnanthemum tenuifolium

Slender Mountain Mint

Pycnanthemum tenuifolium, commonly called mountain mint, is an erect, many-branched, herbaceous perennial that grows 2-3' tall and features extremely narrow, almost needle-like leaves and profuse terminal clusters of small, white flowers which bloom in mid to late summer. All parts of the plant emit a strong, mint-like aroma when crushed.


A Missouri native plant that is found throughout the state.

Additional:

Missouri native

Slender Mountain Mint Growing and Maintenance Tips:

Easily grown in average, dry to medium, well-drained soil in full sun to part shade. A vigorous grower.

Height:

24-36 in

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Spread:

24-36 in

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Hardiness Zone:

4 - 8

Characteristics & Attributes for Pycnanthemum tenuifolium

Exposure
Sun
Partial Shade
Soil Moisture Preference
Dry
Average
Attracts Wildlife
Butterflies
Season of Interest (Flowering)
Summer
Attributes
Border or Bed
Fragrant
Mass Planting
Native
Great Companion Plants for Pycnanthemum tenuifolium
Purple Coneflower Purple Coneflower (Echinacea purpurea )
Adam's Needle Adam's Needle (Yucca filamentosa 'Color Guard')
Butterfly Weed Butterfly Weed (Asclepias tuberosa )
Meadow Sage Meadow Sage (Salvia nemorosa 'Rose Marvel')
Blue False Indigo Blue False Indigo (Baptisia australis )
Big Bluestem Big Bluestem (Andropogon gerardii 'Blackhawks')
Similar Plants to Pycnanthemum tenuifolium
Swamp Milkweed Swamp Milkweed (Asclepias incarnata 'Ice Ballet')