Pycnanthemum tenuifolium

Pycnanthemum tenuifolium


Pycnanthemum tenuifolium, commonly called mountain mint, is somewhat misleading since the plant typically grows in the wild in dry, open, rocky woods, dry prairies and fields, along roadsides, along streams and in open wet thickets. 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. Pycnanthemums have been used in teas.



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


Type: Herbaceous perennial

Family: Lamiaceae

Zone: 4 to 8

Height: 2.00 to 3.00 feet

Spread: 2.00 to 3.00 feet

Bloom Time: July to September

Bloom Description: White

Sun: Full sun to part shade

Water: Dry to medium

Maintenance: Low

Flower: Showy, Good Cut

Leaf: Fragrant

Tolerate: Drought, Erosion, Clay Soil, Dry Soil, Shallow-Rocky Soil

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