Lagerstroemia indica ‘Catawba’ (Crape Myrtle)

Lagerstroemia indica ‘Catawba’ (Crape Myrtle) – Rich Purple Flowers, Fiery Fall Color, and Four-Season Appeal

Lagerstroemia indica ‘Catawba’, commonly known as Catawba crape myrtle or Catawba crepe myrtle, is a compact, deciduous flowering tree celebrated for its saturated violet-purple blooms, graceful vase-shaped habit, colorful autumn foliage, and attractive exfoliating bark. Blooming when many trees have finished flowering, it brings weeks of intense color to sunny gardens from midsummer into early fall.

Smaller than many full-size crape myrtles, ‘Catawba’ generally matures at about 10 to 15 ft. tall and wide (3-4.5 m). Its manageable dimensions make it an excellent choice for residential landscapes, courtyards, foundation plantings, mixed borders, patios, and small lawns where a 25-ft. tree would be overwhelming.

The flower clusters are a particularly rich purple – often described as violet-purple, dark purple, or deep lavender-purple. Bronze-tinged new leaves mature to dark green before turning orange-red in fall. After leaf drop, the smooth, peeling bark and sculptural trunks extend the display through winter.

Quick Facts – Lagerstroemia indica ‘Catawba’

Summary: Compact purple-flowering crape myrtle with a multi-stemmed, upright to vase-shaped habit and strong four-season interest.
Use: Excellent as a specimen tree, flowering accent, lawn tree, foundation plant, informal screen, or large border shrub.
Highlight: Long-lasting violet-purple flowers followed by orange-red fall foliage and decorative winter bark.
Note: Good resistance to powdery mildew does not mean immunity. Full sun, open spacing, and good air circulation remain important.

Botanical Name	Lagerstroemia indica ‘Catawba’
Family	Lythraceae
Common Names	Catawba crape myrtle, Catawba crepe myrtle
Plant Type and Habit	Deciduous large shrub or small tree; upright, rounded to vase-shaped, naturally multi-stemmed
Hardiness (USDA)	Zones 7 to 9; top growth may suffer winter injury near the cold edge of its range
Size	Typically 10-15 ft. tall and 10-15 ft. wide (3-4.5 m)
Sun and Exposure	Full sun; at least 6 hours of direct sun for best flowering and disease resistance
Soil	Average, fertile, well-drained clay, loam, or sandy soil; adaptable to acid, neutral, or mildly alkaline conditions
Bloom Time	Midsummer to early fall, depending on climate
Flower Color	Rich violet-purple to dark lavender-purple
Foliage and Fall Color	Bronze-tinged new growth, dark green summer leaves, and orange-red autumn color
Wildlife Value	Flowers may be visited by bees and other insects; best regarded as a supplemental floral resource
Deer Resistance	Generally deer resistant, although young growth may occasionally be browsed

Care – Quick

• Planting: Choose a hot, sunny site with enough room for the mature canopy.
• Water: Water deeply and regularly during establishment; mature plants tolerate moderate drought.
• Feeding: Apply compost or a modest spring fertilizer only when soil fertility is low.
• Pruning: Prune lightly in late winter; never top or severely cut back the crown.
• Mulching: Maintain a 2-3 in. organic mulch layer without piling it against the trunks.
• Best use: Place where its purple flowers, autumn color, and winter bark can be appreciated throughout the year.

What Is Lagerstroemia indica ‘Catawba’?

Description

‘Catawba’ is a selected cultivar of Lagerstroemia indica, an Asian species widely grown as crape myrtle. It develops into a dense large shrub or compact small tree, commonly with several trunks rising into an upright, spreading, vase-shaped crown. Gardeners can retain the natural multi-stemmed form or train a young plant to fewer trunks for a more tree-like silhouette.

The abundant flowers are carried in upright terminal panicles. Each bloom has the ruffled, crepe-paper petals that give crape myrtle its common name. Although exact timing varies with heat and latitude, the main display usually begins in midsummer and may continue into early fall. Removing faded clusters can improve neatness, but it is not essential for healthy flowering.

Growth Habit and Size

At approximately 10 to 15 ft. tall and 10 to 15 ft. wide, ‘Catawba’ occupies the useful middle ground between dwarf crape myrtles and large shade-tree cultivars. It is substantial enough to anchor a landscape yet compact enough for many suburban gardens. Growth is moderate to fast in warm climates when plants receive full sun, adequate moisture, and reasonable fertility.

Allow the canopy to develop naturally. Crowding the tree against walls, beneath utility lines, or into narrow foundation beds often leads to repeated hard pruning and loss of its graceful architecture. Proper siting is the best long-term maintenance strategy.

Flowers, Foliage, and Bark

The rich purple flowers are the defining feature, but ‘Catawba’ offers much more than a summer bloom display. New leaves may emerge bronze before becoming dark green. In fall, the foliage develops brilliant orange-red tones. Winter exposes smooth, mottled bark and sinuous trunks that become increasingly decorative with age.

Hardiness and Climate

‘Catawba’ is most dependable in USDA Zones 7 to 9. It thrives in hot summers and flowers best where the growing season supplies abundant heat. Near the cold limit, stems may be damaged during severe winters, although established roots can sometimes resprout. A warm, protected position and a properly mulched root zone improve performance in marginal climates.

Uses in the Landscape

• Specimen tree: Showcase the flowers, bark, and branching structure in a lawn or courtyard.
• Small-garden tree: Add summer color without the scale of a large crape myrtle.
• Foundation accent: Use only where the mature spread will not obstruct windows or paths.
• Patio or courtyard accent: Plant where the mature canopy has room to spread and falling flowers will not create unwanted litter or stains on frequently used paving, furniture, or parked vehicles.
• Mixed border: Rise above drought-tolerant perennials, grasses, and low shrubs.
• Informal screen: Plant several with generous spacing for seasonal privacy and color.
• Street or parking-lot accent: Suitable where local climate, soil volume, and overhead clearance are appropriate.

Wildlife and Pollinator Value

The flowers may be visited by bees and other insects, but crape myrtle is best regarded as a supplemental floral resource rather than a high-value pollinator tree.

Deer and Browsing Animals

Crape myrtles are generally considered deer-resistant plants. Established trees are seldom heavily damaged, but no ornamental is completely deer-proof. Protect young trunks and tender shoots where browsing pressure is severe.

Drought and Heat Tolerance

Once established, ‘Catawba’ handles summer heat and periods of drought well. Newly planted specimens still require deep, regular watering, especially during their first growing season. Even mature trees flower and retain foliage better when watered during prolonged drought. Constantly wet soil, however, can lead to weak growth and root problems.

Toxicity

Crape myrtle is not commonly regarded as toxic to people, cats, dogs, or horses. As with any ornamental plant, however, intentional consumption should be discouraged.

Invasiveness

‘Catawba’ is not an aggressive, spreading cultivar. The parent species, Lagerstroemia indica, has naturalized outside cultivation in parts of the southeastern United States. Gardeners near sensitive natural areas can remove occasional seedlings and follow local invasive-plant guidance.

Growing Conditions for Lagerstroemia indica ‘Catawba’

Light

Full sun is strongly recommended for abundant flowering, compact growth, and reduced disease pressure. Provide at least six hours of direct sunlight daily; eight or more hours generally produce the strongest flowering, densest habit, and best disease resistance. Shade encourages sparse bloom, leaning growth, and greater vulnerability to powdery mildew.

Soil

‘Catawba’ adapts to clay, loam, or sandy soil provided drainage is adequate. It performs in acidic, neutral, and mildly alkaline soils, although slightly acidic conditions are often ideal. Avoid low sites that remain waterlogged. In compacted urban soil, loosen a broad planting area rather than creating a small pocket of heavily amended soil.

Water

Water deeply after planting and whenever the upper root zone begins to dry. Deep irrigation encourages a resilient root system; frequent shallow sprinkling does not. Once established, water during extended dry periods rather than keeping the soil continuously wet.

Feeding

Overfertilizing can produce lush leaves at the expense of flowers and may encourage aphids. A soil test is the most reliable guide. In ordinary garden soil, a spring application of compost or a modest, balanced slow-release fertilizer is usually sufficient.

Planting, Maintenance, and Propagation

Planting Tips

Plant in spring or fall, setting the root flare at or slightly above the surrounding soil level. Dig a hole wider than the root ball but no deeper, backfill with the existing soil, water thoroughly, and mulch broadly. Space plants according to their mature 10-15 ft. spread rather than their nursery size.

Maintenance and Pruning

Crape myrtles flower on new wood, so structural pruning is performed in late winter or early spring before growth begins. Remove dead, damaged, rubbing, or inward-growing branches, along with unwanted basal suckers. Thin selectively to reveal the trunks and improve air circulation.

Avoid topping – the severe annual cutting commonly called “crape murder.” It destroys the natural form, creates weak clusters of shoots, increases maintenance, and can leave branches unable to support heavy flower heads. A properly placed ‘Catawba’ should need only light corrective pruning.

Propagation

To preserve the characteristics of ‘Catawba’, propagate vegetatively from softwood, semi-ripe, or hardwood cuttings. Seedlings may vary in flower color, size, and disease resistance and should not be expected to remain true to the cultivar.

Problems and Pests

‘Catawba’ has good resistance to powdery mildew, but resistance is not immunity. Full sun, air circulation, sensible watering, and appropriate spacing remain the best preventive care. Stressed or shaded plants are more likely to develop problems.

• Aphids: Sap-feeding insects may curl leaves and produce sticky honeydew. The honeydew can support black sooty mold.
• Crapemyrtle bark scale: White or gray felted insects collect on trunks and branches, producing heavy honeydew and sooty mold. Inspect bark regularly, especially in regions where this invasive pest is established.
• Powdery mildew: A white fungal coating may appear during humid weather, particularly in shade. ‘Catawba’ is resistant, not completely immune.
• Cercospora leaf spot: Dark leaf spots can cause premature defoliation in warm, humid climates. Remove fallen leaves, avoid overhead irrigation, and maintain airflow.
• Sooty mold: The black coating grows on honeydew produced by aphids or scale. Managing the insect source resolves the underlying problem.
• Winter injury: Cold near or below the cultivar’s hardiness limit can kill stems or delay spring growth.

Design Ideas and Companion Plants with Lagerstroemia indica ‘Catawba’

The following companions match ‘Catawba’ well because they enjoy full sun, heat, and well-drained soil and tolerate moderate dryness after establishment. Keep thirsty plants out of the immediate root zone, and preserve open space around the trunks for airflow and visibility.

• Silver-blue foundation: Salvia ‘Blue Spire’ (Russian Sage) – airy blue flowers and silver stems soften the tree’s base while thriving in sunny, well-drained soil.
• Fragrant Mediterranean edge: Lavandula x intermedia ‘Grosso’ – deep violet spikes echo the canopy and prefer full sun, heat, and sharply drained soil.
• Long-blooming foreground: Nepeta racemosa ‘Walker’s Low’ – lavender-blue flowers create a relaxed skirt beneath the purple canopy and cope well with heat and drought.
• Soft yellow contrast: Coreopsis verticillata ‘Moonbeam’ – buttery yellow flowers brighten the composition without competing with the tree’s saturated purple.
• Warm-season structure: Echinacea purpurea – sturdy summer flowers add pollinator value and tolerate sun, heat, and average well-drained soil.
• Fine-textured movement: Panicum virgatum ‘Northwind’ – upright native grass supplies vertical rhythm, fall color, and winter structure.

Frequently Asked Questions

References

NC State Extension Plant Toolbox – Lagerstroemia indica ‘Catawba’: https://plants.ces.ncsu.edu/plants/lagerstroemia-indica-catawba/

University of Florida IFAS Extension – Crapemyrtle Pruning and Cultivar Sizes: https://ask.ifas.ufl.edu/publication/EP399

Clemson Cooperative Extension – Crape Myrtle: https://hgic.clemson.edu/factsheet/crape-myrtle/

Clemson Cooperative Extension – Crape Myrtle Diseases and Insect Pests: https://hgic.clemson.edu/factsheet/crape-myrtle-diseases-insect-pests/

Updated: July 2026 • Reviewed by Gardenia Editors