American mountain mint
Pycnanthemum virginianum
Hardiness: Zone 3, Zone 4, Zone 5, Zone 6, Zone 7
Plant type: Herbaceous Perennial
Height: 2' - 3'
Spread: 1' - 1.5'
Sun: Full Sun
Water: Medium
Bloom time: July, August, September
Bloom color: White
Soil: Loamy, average well-draining soils, Sandy, well-draining soils, Neutral (≈7), Alkaline (>7pH), Acid (<7pH).