Lagerstroemia ‘Summer Red’ (Crepe Myrtle)
Lagerstroemia ‘Summer Red’ is a deciduous ornamental tree valued for its vibrant red summer flowers, smooth decorative bark, and reliable performance in warm climates. It is widely used in landscape design for its strong colour impact and long flowering season.
The tree produces a dense canopy of green foliage through spring and summer. During the warmer months, it displays large clusters of rich red flowers that create a bold and continuous floral display. In autumn, the leaves turn shades of orange, red, and bronze, adding further seasonal interest.
Key Features
‘Summer Red’ is known for its intense flower colour and extended blooming period. The bright red flowers provide strong visual contrast and are effective in both feature planting and large-scale landscapes.
It also features smooth, peeling bark that reveals attractive tones beneath, adding interest during winter.
This variety performs well in heat and is suited to a wide range of urban and garden conditions.
Growth Habit and Size
This variety develops into a small to medium tree with a rounded canopy.
It typically reaches 5 to 7 metres in height, with a spread of approximately 4 to 6 metres. Growth rate is moderate to fast in warm conditions.
Care Requirements
Light
Requires full sun for best performance. Full sun is essential for strong flowering and healthy 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 flowers form 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 few major problems.
Poor flowering may occur in low light.
Overwatering or poor drainage may lead to root issues.
Applications
Lagerstroemia ‘Summer Red’ is suitable for:
Feature tree planting
Street and avenue planting
Residential gardens
Commercial landscapes
Courtyards and open spaces
Its vibrant flowers and seasonal interest make it a strong ornamental choice.
Specification and Care Chart
| Attribute |
Details |
| Botanical Name |
Lagerstroemia indica ‘Summer Red’ |
| Common Name |
Summer Red Crepe Myrtle |
| Plant Type |
Deciduous ornamental tree |
| Mature Height |
5 m to 7 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 |
| Toxicity |
Not commonly regarded as toxic |
FAQ – Lagerstroemia ‘Summer Red’
What colour are the flowers?
Rich red flowers appear in summer.
Does it need full sun?
Yes, full sun is essential for best flowering.
When should it be pruned?
Late winter, as it flowers on new growth.
How big does it grow?
Typically reaches 5 to 7 metres in height.
Is it drought tolerant?
Yes, moderately drought tolerant once established.
Does it have autumn colour?
Yes, foliage turns shades of orange, red, and bronze.
