When to Replant Crepe Myrtle Bushes

Transplanting Time

• The transplanting of crepe myrtle shrubs can be done at any time of the year if the plants are growing in containers, advises the Auburn University Extension. If transplanting or replanting during summer, keep plants well watered. If using balled, burlapped or bare-root plants, the best time for planting is during the dormant state of plants during fall, winter or very early spring. If location needs to be changed for plants already growing in the landscape, the recommended time to do this is during fall or late winter.

Soil

• Plant crepe myrtle shrubs in a moist, well-drained soil. The plants adapt easily to a range of soil types except those that are consistently wet. Crepe myrtles are drought tolerant and thrive well in soil with moderate fertility with low fertilizer requirement. The Auburn University Extension recommends the use of 1 lb. of actual nitrogen for every 1,000 feet of crepe myrtle planting area. Avoid excessive use of fertilizer, as this reduces cold hardiness. Good soil pH for adequate plant growth ranges anywhere between 5.0 to 6.5.

Light

• Crepe myrtle grows best in areas of full or partial sun; however, flowering is prolific in full sun locations. The plant also grows reasonably well in the shade of larger trees but with reduced blooms. Plants growing in low-light areas tend to lean toward the sun. Planting in well-lit and well-ventilated sites reduces chances of powdery mildew, a fungal disorder characterized by black to gray coating on foliage and stunted new growth.

Pruning

• The shrubs require only minimal pruning to maintain health and appearance. Heavy pruning of crepe myrtle shrubs is not recommended, as this spoils natural form, leaving bare, unsightly stems. Pruning primarily consists of thinning heavy branches in order to improve plant shape. Trim lightly during late winter to encourage new spring growth.