Lamiaceae

slender mountain mint

Pycnanthemum tenuifolium

Synonyms

Pycnanthemum flexuosum

Other Common Names

narrow-leaf mountain mint

Plant Type

Herbaceous Wildflower

Life Cycle

Perennial

Typical Size

2-4 ft. tall
2-3 ft. wide

Tolerant of

Occasional Flooding

Inolerant of

Dry Soil

Propagation

By seed, By cutting, By division

Plant Propagation Notes

Take tip cuttings in June. No pretreatment is needed for seed germination.

Plant Planting Notes

Provide about 2 ft spacing

Plants/Diseases

No significant disease or pest issues.

Wildlife Benefits

Nectar/pollen source for pollinating insects, Host plant for butterfly larvae

Leaves

Leaves are opposite and linear; 1-3 inches long and very narrow (needle-like)

Flowers

The white, sometimes pink, showy flowers are on a cyme.

Edibility

flowers and leaves are edible

Pycnanthemum tenuifolium

USDA Hardiness Zones

4, 5, 6, 7, 8

Light Exposure

Full Sun, Part Sun/Shade

Soil Moisture

Moist

Soil Drainage

Well-drained

Soil pH

Acidic (less than 6.0)

Native in South Carolina?

Yes

Plant Native Habitat

Bogs, wet meadows, moist to wet forests

Global Conservation Status (NatureServe)

Secure (G5)

Federal Conservation Status (USFWS)

Not Listed

Distribution Notes

uncommon in the coastal plain and sandhill regions, common in the piedmont and mountain regions