Perennial – Clustered Mountain Mint

Clustered Mountain Mint  

Botanical name: pycnanthemum muticum 

Beginner friendly?: moderate 

Average size at maturity: 2-3 ft in height and in spread 

Hardy zone: zones 4-8 

Growth rate: reaches fully mature size in first growing season 

Foliage color: green 

Flower color: white/pink 

Bloom time:  summer 

Pruning instructions: deadhead withered blooms and foliage as needed 

Propagation methods: propagate by seed sowing 

Landscape use: pollinator gardens, borders/edging, container plant 

Special features: cold-hardy, clay tolerant, fragrant blooms and foliage 

Light needs: at least 6 hours of sun per day 

Watering instructions: allow the top first inch of soil to dry out between watering sessions 

Fertilizing instructions : use a slow-release balanced fertilizer once a year in the early spring as the plant exits dormancy 

Best time to plant: spring 

Best type of soil:  loam, clay 

Companion plants: coneflower, goldenrods, aster, beebalm 

Toxicity level: mildly toxic for humans and pets if ingested 

Invasive species: no