Sioux Crape Myrtle

Dark Pink Blooms for the Heat of Summer

Sioux Crape Myrtle is a beautiful summer-flowering ornamental tree known for its dark-pink flower clusters, long bloom season, and dependable landscape performance. When many spring-flowering trees have finished, Sioux brings fresh color into the hottest part of the season with showy crepe-paper-like blooms.

The flowers appear in large panicles at the tips of new growth, creating a bright pink display from mid to late summer. This makes Sioux an excellent choice for front yards, lawn islands, driveway beds, patio plantings, sunny borders, and curb appeal landscapes where summer color is just as important as spring bloom.

A Medium-Sized Crape Myrtle With Strong Design Value

Sioux Crape Myrtle is a medium-sized selection that typically matures around 15 to 20 feet tall and 10 to 15 feet wide. That puts it in a useful size range for homeowners who want a true ornamental tree without planting one of the largest crape myrtles.

Its oval to upright-rounded habit works well as a specimen tree, multi-stemmed accent, small shade tree, or flowering anchor in mixed shrub beds. It can also be trained as a small standard tree to show off the trunk and bark. Give it room to mature naturally, and avoid placing it where flowers may drop onto cars, walkways, or light-colored hardscapes.

Mildew Resistance and Better Garden Performance

Sioux is one of the disease-resistant crape myrtle hybrids developed at the U.S. National Arboretum. It was selected to combine summer bloom, improved mildew resistance, and attractive ornamental qualities in a manageable, intermediate form.

That disease resistance is a major advantage, especially compared with older crape myrtle selections that can struggle with powdery mildew in humid climates. Still, good care matters. Plant Sioux in full sun with good airflow, avoid overhead watering when possible, and give the canopy room to dry after rain.

Fall Color, Peeling Bark, and Winter Interest

Sioux Crape Myrtle is not just a summer-blooming tree. After flowering, the green foliage can turn to attractive red, burgundy, or purple tones in fall, adding another season of interest. As the tree matures, smooth peeling bark adds texture and winter character.

That multi-season value makes Sioux a strong choice for homeowners who want more than a one-note flowering tree. The bloom is the main event, but the fall foliage and bark help the tree stay useful after the flowers fade. Plant it where the trunk structure is visible, especially in winter.

Full Sun, Good Drainage, and Proper Pruning

Sioux Crape Myrtle performs best in full sun with well-drained soil. At least 6 hours of direct sun is important, but more sun usually means better bloom, stronger growth, and cleaner foliage. Once established, Sioux is drought-tolerant and can handle heat, humidity, urban conditions, and a range of soil types.

Prune in late winter or early spring before new growth begins because crape myrtles bloom on new wood. Remove dead, damaged, crossing, crowded, or weak branches, and lightly shape the tree if needed. Avoid severe topping, often called crape murder, because it creates weak shoots, ruins the natural branch structure, and reduces the trees long-term beauty.