Also known as Hoary Mountain-Mint · Silverleaf Mountain Mint
Hoary Mountainmint (Pycnanthemum incanum) is a fragrant native perennial with fuzzy leaves and whorls of lavender-pink flowers, attracting pollinators.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Thrives in full sun for best growth and flowering. Can tolerate partial shade but may become leggy.
Moderate
50% intensity
Prefers consistently moist soil, but established plants are drought-tolerant. Water deeply when dry.
Well-drained, sandy loam, rocky
50% intensity
Moderate
50% intensity
Prefers average room temperatures. Tolerates a range of conditions but avoid extreme heat or cold.
Low
25% intensity
Generally does not require heavy feeding. Light feeding in spring is sufficient.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Hoary Mountainmint prefers consistently moist soil during its establishment phase. Once established, it is quite drought-tolerant.
Water deeply when the top 2-3 cm of soil feels dry, particularly during prolonged dry spells. Avoid waterlogging, as this can lead to root rot. Reduce watering in cooler months.
Prune back old stems in late winter or early spring before new growth emerges. Deadheading spent flowers can encourage a second flush of blooms and prevent self-seeding.
To maintain a bushy habit and prevent flopping, pinch back the tips of young plants in early summer.
Hoary Mountainmint can be propagated by seed sown in fall or early spring. Division of established clumps is best done in early spring as new growth appears.
Stem cuttings can also be taken in late spring or early summer and rooted in moist potting medium.
Repotting is generally only necessary for container-grown plants that have become root-bound. This is best done in early spring before active growth begins. Choose a pot that is only slightly larger than the current one.
Ensure good drainage in the new container.
Identify plants like this with ePlant AI
Snap a photo to get care tips and match similar species on the go.
Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Hoary Mountainmint (Pycnanthemum incanum)
Where Hoary Mountainmint (Pycnanthemum incanum) is found
Density
Tap map to explore
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Pycnanthemum |
| Species | Pycnanthemum incanum |
Similar in genus Pycnanthemum
Answers based on plant encyclopedia data
