Appalachian Mountain Mint
Pycnanthemum flexuosum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
30 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Eastern North America
Toxicity
Non-toxic
The Story
Plant Bio
Pycnanthemum flexuosum, the Appalachian Mountain Mint, is an upright, clump-forming perennial native to eastern North America. It features narrow, aromatic leaves and dense, terminal clusters of small, two-lipped white flowers. A superb pollinator plant, its flowers are a magnet for a vast diversity of bees, wasps, and butterflies. The foliage has a strong spearmint fragrance when crushed.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity during rooting process.
- Water consistently during the growing season to keep soil moist but not waterlogged.
- Thin seedlings to promote healthy growth, spacing 12-18 inches apart.
- Fertilize with a balanced organic fertilizer every 6 weeks during active growth.
- Prune lightly after flowering to encourage bushier growth.
Pro Tip
Plant in full sun for optimal growth and abundant flowering.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Prune after flowering to promote new growth
- Use organic compost to enrich soil
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t use chemical fertilizers excessively
- Do not neglect pruning to maintain shape
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Harvest | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Appalachian Mountain Mint questions
What zones can Appalachian Mountain Mint grow in?
Appalachian Mountain Mint is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Appalachian Mountain Mint deer resistant?
Yes — Appalachian Mountain Mint is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Appalachian Mountain Mint bloom?
Appalachian Mountain Mint typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Appalachian Mountain Mint need full sun?
Appalachian Mountain Mint does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Appalachian Mountain Mint drought tolerant?
Yes — once established (usually after the first full season), Appalachian Mountain Mint handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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Grow Appalachian Mountain Mint with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
