smooth phlox

Smooth phlox (Phlox glaberrima) needs moist, well-drained soil and should be watered regularly to keep the soil evenly moist. During the growing season, water the soil once or twice a week, providing enough water to moisten the top 6-8 inches of soil. During this time, avoid over-watering to prevent root rot and other potential problems. During the dormant season, water only when the soil feels dry to the touch. This typically occurs several weeks between watering during this time.

Smooth phlox (Phlox glaberrima) requires full sun or partial sun in order to properly grow and thrive. It should receive at least 5 to 6 hours of direct sunlight during the day, ideally in the morning hours. When grown in full sun, smooth phlox will bloom for weeks. If this plant is placed in too much shade, the blooming time may be significantly shortened or the plant may not bloom at all. Additionally, if the plant is placed in too much shade, the foliage may become disease-prone due to increased humidity levels.

Smooth phlox (Phlox glaberrima) should be pruned after blooming has faded. Generally, the first pruning should take place in late summer (August-September) to remove the faded blooms. At this time, prune back the plant by 1/3 to both promote new growth and reduce the potential for disease. During subsequent years, do 1/3 pruning every 1-2 years depending on the desired size of the plant. In early to mid-spring, only remove dead branches and leaves to encourage new growth. Do not prune stems too close to the ground as this may prevent new growth from forming.