Crape myrtle tree

4th  August, 2023

Crab myrtle trees, also known as Lagerstroemia, can be a lovely, colourful addition to British gardens. Here are some details about the plant, along with suitable cultivars for hardiness zones 8a to 9b (which it typical for most of the country), and tips on how to care for them: 

Plant Details: 

- Crab myrtle trees are deciduous shrubs or small trees that are known for their vibrant, showy flowers and attractive bark. - They typically have a compact and bushy growth habit, with a moderate height ranging from 3 to 20 feet (1m, to 7m), depending on the cultivar. 

- The flowers of crab myrtle trees can be various colours, including shades of pink, red, purple, and white. They bloom in late summer or early autumn, providing a beautiful late-season display. 

- These trees have attractive peeling or mottled bark, which adds interest to the landscape, especially in winter. - Crab myrtle trees prefer full sun to partial shade and well-drained soil. They are relatively drought-tolerant once established. 

Cultivars suitable for Zone 8a: 

1. Lagerstroemia indica 'Dynamite': This cultivar has bright red flowers and can grow up to 20 feet tall (7m). It has attractive cinnamon-coloured bark and beautiful autumn foliage. 

2. Lagerstroemia indica 'Natchez': This cultivar features large clusters of white flowers and can reach a height of about 20 feet (7m). It has a smooth, light gray bark. 

3. Lagerstroemia indica 'Tonto': With its deep rosy pink flowers, this cultivar is a popular choice. It grows to approximately 10 feet (3.5m) tall and has exfoliating, cinnamon-coloured bark. 

Caring for Crab Myrtle Trees: 

1. Planting: Choose a location that receives at least six hours of direct sunlight per day. Dig a hole slightly wider and deeper than the plant's root ball. Backfill with well-draining soil, and water thoroughly after planting. 

2. Watering: Newly planted crab myrtle trees will need regular watering until established. Provide deep waterings once or twice a week during dry spells. Established trees are relatively drought-tolerant but benefit from regular watering during prolonged dry periods. 

3. Pruning: Prune crab myrtle trees in late winter or early spring to remove dead or damaged wood and to maintain a desired shape. You can also prune lightly to encourage better airflow and flowering. 

4. Fertilizing: Apply a balanced slow-release fertiliser in early spring before new growth begins. Follow the package instructions for application rates. 

5. Mulching: Apply a layer of organic mulch around the base of the tree to help retain moisture, suppress weeds, and improve soil quality. 

6. Winter care: Crab myrtle trees are generally hardy in zone 8a, but if you experience particularly cold winters, it may be beneficial to protect the plant by covering it with burlap or providing a windbreak. 

Remember to always consider the specific requirements and characteristics of the chosen cultivar, as they may have slight variations in their care needs.