Species mountain mint
lime foliage and stems

mountain mint

Pycnanthemum setosum

Mountain mint is a species of flowering plant native to eastern North America. It grows best in thickets, woods, and other moist soil types near streams and wetlands. It has an attractive crinkled and pointed blue-green foliage, and unique, two-lipped white flowers with purple spots on the lower lip. The flowers attract a variety of pollinators, and the leaves have a pleasant peppery, minty aroma. Mountain mint is drought and heat tolerant and drought tolerant, making it easy to care for in gardens. Its height ranges from 1-3 feet, and it blooms from June to October.

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Division,Cutting,Seed Propagation,Layering Propagation

Hardiness Zone:

5 - 9

Flowers:

White Flowers

Sun:

Full sun

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Thorny:

Yes

Care Level:

Medium

watering

Mountain mint should be watered about 2-3 times per week. It prefers to stay slightly moist so it can benefit from an inch or 2 of water after the top inch or 2 of soil has dried out. Water deeply and let the soil dry before watering again, and avoid wetting the foliage. During the hot summer months, water more frequently to keep the soil hydrated. During the winter months, water sparingly to allow the soil to dry out. Mountain mint does not tolerate boggy or overly wet conditions.

sunlight

Mountain mint (Pycnanthemum setosum) does best in full sun to partially shaded areas, making it ideal for planting in sunny spots. As a native wildflower, this species thrives in sunny spots with some afternoon shade in northern climates. That being said, it prefers at least 4-5 hours of direct sunlight each day in order to thrive and bloom. The midday sun may be too intense for some locations, so providing some protection from the blistering heat by planting in dappled sunlight or providing shade from trees can help. Finally, it is important to avoid full shade or locations where the sunlight is blocked all day, as this may cause the plant to become leggy and not blossom.

pruning

Mountain mint (Pycnanthemum setosum) should be pruned throughout the growing season to promote health and encourage new growth. Pruning should be done when the plants are beginning to flower, as this will remove spent flower heads and promote new bloom. If necessary, more pruning can be done in late summer or early fall, to help promote a second set of flowers. Prune sparingly, as too much pruning can damage the plant. When pruning, always use sharp pruning shears and snip away any dead or diseased leaves or stems.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Mountain mint typically starts flowering in July.

Hardiness Map