Lagerstroemia ‘Tonto’ (Crepe Myrtle)
Lagerstroemia ‘Tonto’ is a deciduous ornamental tree valued for its vivid red summer flowers, attractive bark, and compact growth habit. Part of the Native American series, it is bred for improved disease resistance and reliable performance in a range of climates.
The plant develops a dense canopy of mid-green leaves that provide shade through the warmer months. In summer, it produces abundant clusters of bright red flowers, creating a bold and long-lasting display. As autumn approaches, the foliage turns warm tones of orange, red, and bronze.
Key Features
‘Tonto’ is known for its strong red flowering and resistance to common issues such as powdery mildew. Its compact size makes it suitable for smaller gardens and urban environments.
The smooth, mottled bark adds visual interest during winter when the tree is leafless.
Its long flowering period and seasonal colour changes make it a versatile ornamental tree.
Growth Habit and Size
This variety grows as a small to medium tree with a rounded canopy.
It typically reaches 4 to 6 metres in height, with a spread of approximately 3 to 5 metres. Growth rate is moderate to fast in warm conditions.
Care Requirements
Light
Performs best in full sun. Full sun is essential for strong flowering and compact growth.
Watering
Requires regular watering during establishment. Once established, it is moderately drought tolerant.
Water deeply during extended dry periods.
Soil
Prefers well-draining soil and is adaptable to a range of soil types.
Temperature and Climate
Suitable for warm temperate to subtropical climates. It tolerates heat, humidity, and frost once established.
Maintenance
Low maintenance. Prune in late winter to shape and encourage new growth, as flowering occurs on new wood.
Fertilising in spring can support flowering and growth.
Mulching helps retain soil moisture and improve soil structure.
Common Issues
Generally hardy with strong disease resistance.
Poor flowering may occur in low light.
Overwatering or poor drainage may lead to root issues.
Applications
Lagerstroemia ‘Tonto’ is suitable for:
Feature tree planting
Small to medium gardens
Street and avenue planting
Courtyards and urban spaces
Commercial landscapes
Its compact size and vivid flowers make it ideal for high-impact planting.
Specification and Care Chart
| Attribute |
Details |
| Botanical Name |
Lagerstroemia indica x fauriei ‘Tonto’ |
| Common Name |
Tonto Crepe Myrtle |
| Plant Type |
Deciduous ornamental tree |
| Mature Height |
4 m to 6 m |
| Growth Habit |
Rounded |
| Growth Rate |
Moderate to fast |
| Light Conditions |
Full sun |
| Direct Sunlight |
Required |
| Watering Frequency |
Moderate; drought tolerant once established |
| Soil Type |
Well-draining, adaptable |
| Drainage Requirement |
Essential |
| Temperature Range |
Warm temperate to subtropical |
| Frost Tolerance |
High |
| Drought Tolerance |
Moderate |
| Maintenance Level |
Low |
| Fertiliser |
Spring feeding beneficial |
| Disease Resistance |
High (mildew resistant) |
| Toxicity |
Not commonly regarded as toxic |
FAQ – Lagerstroemia ‘Tonto’
What colour are the flowers?
Bright red flowers appear in summer.
Does it need full sun?
Yes, full sun is essential for flowering.
Is it disease resistant?
Yes, it has strong resistance to powdery mildew.
When should it be pruned?
Late winter, as it flowers on new growth.
How big does it grow?
Typically reaches 4 to 6 metres in height.
Does it have autumn colour?
Yes, foliage turns shades of orange, red, and bronze.
