slender mountain mint

Watering slender mountain mint plants should be done approximately 2 to 3 times per week, depending on the environmental conditions. This plant performs best with plenty of moisture, although it is also tolerant of drought. During periods of high heat and low rainfall, you should increase the amount of water given. On the other hand, during cool and wet weather, you may water less frequently. It is important to allow the surface of the soil to dry out slightly between waterings, to reduce the risk of root rot and other fungal or bacterial problems. Soil should be kept moist, but not soggy. During the mid to late summer, fertilization may be beneficial for this plant species. If desired, a balanced fertilizer diluted to half strength can be applied at this time.

Slender mountain mint thrives in full sunlight, with 6-8 hours of direct sunlight preferred. If the plant is in full sun it should receive at least 6 hours of sunlight each day. If planted in partial sun, it should receive at least 4-5 hours of sunlight each day. However, it is important to note that Pycnanthemum tenuifolium can tolerate some periods of shade, but if given too much shade the plant may become weak and spindly.

Slender mountain mint can be pruned once a year in late spring after the plants flower. Pruning should be kept to a minimum as this species is a perennial and highly vigorous. Prune to shape the plant and remove dead, dying or non-flowering stems. Avoid cutting green or flowering shoots as this will reduce the plant's natural floering habit. Cut out any flowering stems that cross over or form a tangle, and also prune back unruly or tall stems to keep the plant tidy and encourage side shoots and a dense habit. Make sure not to remove more than a quarter of the live stems to avoid stressing the plant.