Pycnanthemum pilosum | hairy mountain mint

Regular price: $8.99
Regular price
Sale price: $8.99

Shipping calculated at checkout.

4" pot

order now for FALL 2025 shipping or pickup

Grown from seed in living soil without the use of pesticides, chemicals, or carbon fuels.

Hairy mountain mint (Pycnanthemum pilosum), also commonly known as American mountain mint or whorled mountain mint, is a vigorous native perennial that can be found growing on rocky slopes, prairies, and open woodlands throughout much of the central United States. Native bees and other pollinators adore the white summer blooms. Aromatic foliage is deer and rabbit resistant.

This vigorous spreader is easy to grow in average, dry, or well-drained soil in full sun or part shade. It is best suited to the native plant garden where rapid spreader is desired. It may not be the best candidate for the ornamental border, though the rhizomatous roots can be kept in check with a good spade chop in spring.

syn. Pycnanthemum verticillatum var. pilosum

Zone: 4 to 8
Family: Lamiaceae
Type: Herbaceous Perennial
Height: 12 to 36 in.
Spread: 12 to 26 in.
Exposure: full sun to part shade
Conditions: average, dry, moist but well-drained
Bloom Time: July to September
Native Range: Eastern and central United States

Special Characteristics

Fragrant
Deer-resistant
Rabbit resistant
Drought resistant
Groundcover
Pollinator favorite

image credits

Doug McGrady from Warwick, RI, USA, CC BY 2.0, via Wikimedia Commons

Ordering information

Preorders

You may place your order anytime to reserve plants for fall 2025 shipment. If you place multiple orders, we will combine plants into one box (or as many as needed) and any extra shipping charges will be refunded.

We will resume shipping plants as soon as temperatures cool in our location and yours.

We will check in with you a week before shipping to make sure you receive your plants at a time that is convenient for you.

Shipping

Live plants ship in spring and fall only. Plants may ship dormant, depending on variety and season. Shipping costs are most reasonable when bundling like size plants.

4-inch: 1-6 plants ship for $15.00 / 7-13 plants ship for $18.00 / 14-30 plants ship for $40.00
1-gal: 1-2 plants ship for $18.00 / 3-4 plants ship for $25.00 / 5-6 plants ship for $40.00
trees & shrubs: $27.00-$40.00 each, height dependent
seeds: $6.75 or free with orders over $15.00

We regret that we cannot ship internationally or to the following states: AK, AZ, CA, CO, FL, HI, ID, MT, NV, OR, UT, or WA.

Nursery pick up

Plants can be collected from the nursery Monday through Sunday from 10am-4pm in Spring, Summer, and Fall. We prefer 24 hour notice to get your order together and will email you when ready for collection.

Plant Sizes

We most commonly use the following pot sizes for perennials:

4-inch pot: 3.5" H x 3.5" W x 3.5" D
2-quart pot: 6" H x 5.25" W x 5.25" D
1-gallon pot: 6.87" H x 8" Dia (this is a true one gallon pot, not the smaller 'trade' one gallon pot used by many nurseries)

Check out our illustrated pot size guide here.

Representative trees & shrubs are photographed in their pots and posted on each plant page.

Sustainability

Sustainability is at the heart of what we do at The Old Dairy. We grow all of our plants outdoors without the use of chemicals, fertilizers, carbon fuels, or peat.

Many of our perennials are grown in the ground and dug upon order (this is especially true for larger sizes). This practice allows us to grow stronger, healthier plants using native soil, and ultimately reduces our impact on the environment.

Our open-pollinated seeds are collected from plants in our mother beds, which have never been treated with chemicals or sprays of any kind.

Read all about our sustainable practices here.