Understanding Crepe Myrtle Varieties: A Complete Guide

With dozens of crepe myrtle varieties available in Australia, choosing the right one can feel overwhelming. From tiny dwarf cultivars perfect for pots to towering specimens suitable for large properties, the range of sizes, colours, and characteristics is vast. Understanding the differences between varieties helps you select the perfect tree for your specific situation.

This guide breaks down the main categories of crepe myrtles and highlights some of the best varieties available in Australia, helping you make an informed choice that you'll be happy with for years to come.

The Botany of Crepe Myrtles

Crepe myrtles belong to the genus Lagerstroemia, which contains around 50 species native to Southeast Asia, the Indian subcontinent, and northern Australia. The ornamental varieties grown in gardens are primarily derived from two species:

Many modern cultivars are hybrids between these two species, combining the best traits of both: spectacular flowers, beautiful bark, and excellent disease resistance. These hybrids are generally the best choice for Australian gardens.

Size Categories

Crepe myrtles are typically grouped into four size categories. Choosing the right size for your space is the most important decision you'll make.

Dwarf Varieties (Under 1.5m)

Perfect for containers, small garden beds, and borders. These compact varieties bring crepe myrtle beauty to the smallest spaces.

Container Growing Tip

Dwarf varieties are specifically bred for container growing. Choose a pot at least 40cm diameter with good drainage. These compact varieties still produce abundant flowers despite their small size.

Semi-Dwarf Varieties (1.5-3m)

Ideal for smaller gardens, hedging, and where space is limited. Large enough to make an impact but compact enough to manage easily.

Intermediate Varieties (3-5m)

The sweet spot for most suburban gardens. Large enough to serve as a feature tree but not so large as to overwhelm standard-sized gardens.

Large Varieties (5m+)

Substantial trees for larger properties, parks, and street plantings. These create impressive specimens with spectacular flower displays.

Key Takeaway

Always check the mature size before purchasing. A tree that seems small in a pot can quickly outgrow its space. It's much easier to choose the right size from the start than to fight against nature for years.

Colour Options

Crepe myrtles are available in a remarkable range of flower colours, allowing you to match your garden's colour scheme.

Pink Shades

The most traditional and popular colour family, ranging from soft blush to hot pink.

Red Shades

Bold and eye-catching, red varieties make strong statements.

White

Elegant and sophisticated, white varieties light up evening gardens.

Purple/Lavender

Unique and distinctive, purple varieties add regal elegance.

Special Features

Disease Resistance

If powdery mildew is a problem in your area, choose varieties with proven resistance. The best disease-resistant varieties include Natchez, Tuscarora, Muskogee, and most modern hybrids derived from Lagerstroemia fauriei.

Bark Interest

Some varieties have particularly ornamental bark that provides winter interest when leaves have fallen. Outstanding bark varieties include:

Autumn Colour

While all crepe myrtles offer autumn colour, some are particularly spectacular. Catawba and other purple-flowering varieties often produce intense red-orange autumn foliage.

Use Our Variety Comparison Tool

Visit our variety comparison tool to compare features side-by-side and find the perfect crepe myrtle for your garden. You can filter by size, colour, and use case.

Choosing the Right Variety

Consider these factors when selecting your crepe myrtle:

  1. Available space: Measure your planting area and check mature dimensions
  2. Purpose: Feature tree, hedge, container, or street planting
  3. Colour preference: Consider existing garden colours
  4. Climate: Some varieties perform better in specific regions
  5. Maintenance level: Larger varieties may need more management

When in doubt, visit local nurseries to see specimens in person, or look for mature examples in your neighbourhood. There's no substitute for seeing a variety at its full potential before committing to planting one in your garden.

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Written by Sarah Mitchell

Sarah is a Sydney-based horticulturist with 15+ years of experience growing and evaluating crepe myrtle varieties in Australian conditions.

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