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Native Wildflower · Easy

How to Grow Narrow-Leaved Mountain Mint

Pycnanthemum tenuifolium

Your complete guide to growing Narrow-Leaved Mountain Mint.

☀SunFull sun to partial shade (4-6+ hours)
💧WaterDrought tolerant
🗺Zones4–8
📏Height2-4 feet
Narrow-Leaved Mountain Mint📷 Wikimedia Commons

When to Plant Narrow-Leaved Mountain Mint

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 4 — April – June —
Zone 5 — April – June —
Zone 6 — April – June —
Zone 7 — March – May —
Zone 8 — March – May —

Companion Plants for Narrow-Leaved Mountain Mint

✓ Good companions

Black-Eyed Susan

Provides different bloom time extending pollinator season, compatible root systems

Little Bluestem Grass

Native grass provides structural support and creates beneficial microhabitat

New England Aster

Late season bloomer extends habitat value, shares preference for well-drained soils

Nodding Onion

Natural pest deterrent that complements mint's insect-repelling properties

Purple Coneflower

Attracts complementary pollinators and shares similar soil and moisture requirements

Wild Bergamot

Both are aromatic natives that support beneficial insects and have similar growing conditions

Wild Columbine

Different root depth reduces competition, early bloomer complements mint's summer flowering

Yarrow

Attracts beneficial predatory insects and improves soil through dynamic accumulation

✗ Keep away from

Autumn Olive

Invasive shrub that outcompetes natives and alters soil nitrogen levels

Black Walnut

Produces juglone which is toxic to many plants including most mints

Crown Vetch

Aggressive spreader that can overwhelm and shade out low-growing wildflowers

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.