How to Grow and Care for Crape Myrtles

A guide on how to grow and care for Crape Myrtles.

Crape Myrtles are a beloved addition to many gardens due to their stunning blooms and relatively easy care. This comprehensive guide will explore everything you need to know about growing and caring for Crape Myrtles, from planting to pruning and seasonal care.

What are Crape Myrtles?

Crape Myrtles (Lagerstroemia) are deciduous shrubs or small trees known for their vibrant summer flowers, attractive bark, and long-lasting foliage. Native to Asia, they thrive in warm climates and are common in landscapes for their colorful blossoms, which range from white to deep red and purple.

Choosing the Perfect Location for Your Crape Myrtle

Crape myrtles grow well in USDA hardiness zones 6-10, where they can enjoy long periods of sunlight and warmth. They thrive in Texas’ hot climate, and their drought tolerance and minimal maintenance make them a favorite among Texas gardeners and landscapers. They come in various colors and sizes for different landscape designs and garden spaces.

These trees prefer full sun to encourage vibrant blooms and prevent mildew. Ensure the soil is well-draining, as Crape myrtles do not tolerate waterlogged conditions.

Planting Crape Myrtles Correctly

When planting Crape Myrtles, it's essential to consider the soil conditions and ideal companions for these plants. Crape Myrtles thrive in well-draining soil with a slightly acidic to neutral pH of 5.5 to 7.0, and they perform exceptionally well when planted alongside other sun-loving plants, such as ornamental grasses, daylilies, and lavender.

When is the best time to plant a Crape Myrtle?

The best time to plant Crape Myrtles is late fall or early spring. Planting in the fall allows the roots to establish themselves before winter dormancy, while early spring planting takes advantage of the upcoming growing season. Avoid planting during the peak summer months when heat stress can impede the establishment of the new plants.

Step-by-Step

1. Check your soil: Run a soil test to check the pH and drainage of your potential planting spot.
2. Prepare your soil: Dig a hole twice as wide as the root ball and of the same depth, and mix the excavated soil with compost to improve fertility and drainage.
3. Planting: Place the Crape Myrtle in the hole so that the top of the root ball is level with the surrounding soil. Backfill with the soil-compost mixture, gently tamping down to remove air pockets.
4. Set up for Success: Water thoroughly after planting to settle the soil around the roots, then apply a layer of mulch.

Can I grow Crape Myrtles in containers?

If you want to plant Crape Myrtles in containers, choose a dwarf variety and a large container or pot with drainage holes. Use a high-quality potting mix and ensure the container is in a sunny location for your tree to thrive.

Crape Myrtle Care Instructions: Watering and Feeding Tips

How often should I water my crape myrtles?

Newly planted Crape Myrtles need regular watering to establish roots. Water them deeply once or twice a week during the first growing season. Established Crape Myrtles are drought-tolerant but benefit from occasional deep watering during dry spells.

Seasonal care Guide

Spring: Apply a balanced slow-release fertilizer in early spring as new growth begins.

Summer: Mulch around the base to retain moisture and regulate soil temperature. Continue watering during dry periods.

Fall: Reduce watering as the plant prepares for dormancy.

Winter: To protect your Crape Myrtles from winter frost, apply a thick layer of mulch around the base the insulate the roots. Protect young plants by covering them with burlap or moving container-grown plants to a sheltered location.

Pruning and Shaping Crape Myrtles

Pruning Crape Myrtles involves several steps to ensure healthy growth and beautiful blooms:

1. Remove Suckers: Cut off any shoots growing from the base or roots. 
2. Thin the Canopy: Remove crossing, rubbing, or inward-growing branches to allow light and air to penetrate.
3. Trim Small Branches: Cut back last year’s growth to encourage more flowers.
4. Shape the Tree: Maintain a natural shape by selectively pruning rather than topping the tree, which can cause weak growth.

What’s the best time to prune crape myrtles?

The best time to prune Crape Myrtles is in late winter or early spring before new growth begins. Avoid pruning in late summer or fall, as the stimulated new growth is vulnerable to frost.

What are the Signs of Common Crape Myrtle Diseases?

Powdery Mildew: White, powdery spots on leaves and buds. Ensure proper air circulation and apply fungicide if necessary.

Cercospora Leaf Spot: Small, dark spots on leaves that can cause premature leaf drop. Remove and dispose of affected leaves and apply fungicide if needed.

Sooty Mold: Black, sooty substance on leaves caused by aphid infestations. Control aphids to prevent sooty mold.

Conclusion

Crape Myrtles are a stunning addition to any garden, providing vibrant blooms and year-round interest. By choosing the right location, planting correctly, and following proper care guidelines, you can enjoy their beauty for many years. With this comprehensive guide, you’re well-equipped to successfully grow and care for Crape Myrtles. Happy gardening!