Purple crape myrtle (Lagerstroemia indica 'Purple') is a variety known for its vibrant purple flowers that bloom in summer and fall. These trees are popular for their colorful display and ability to thrive in various climates, including warm regions like the southern United States. Crape myrtle trees are beloved for their stunning purple blooms and easy care.
Whether you're considering adding one to your garden or already have one, this blog has everything you need to know about caring for these beautiful trees, including where to find them.
How to Find Crape Myrtle Trees?
- Local Nurseries: Visit local nurseries that specialize in trees and shrubs. They often carry a variety of crape myrtle trees, including purple cultivars.
- Online Nurseries: Many online nurseries offer crape myrtle trees for sale. This option allows you to explore a wider range of sizes and cultivars without leaving your home.
How To Plant Purple Crape Myrtle Trees
Proper planting is crucial for the health and growth of your crape myrtle tree:
- Choosing a Location: Select a sunny spot with well-drained soil. Crape myrtles prefer full sun, which helps them produce abundant blooms.
- Planting Time: Spring or early fall is ideal for planting. Avoid planting during the hottest part of summer to prevent stress on the tree.
- Digging the Hole: Dig a hole that is twice as wide and just as deep as the root ball of the tree. This allows the roots to spread easily.
- Planting Depth: Place the tree in the hole so that the top of the root ball is level with the surrounding soil. Avoid planting too deeply, which can suffocate the roots.
- Watering: Water the tree thoroughly after planting to settle the soil around the roots. Continue to water regularly, especially during dry spells, to keep the soil moist.
Comparison of Purple Crape Myrtle with Other Varieties
Feature |
Purple Crape Myrtle |
Other Crape Myrtle Varieties |
Flower Color |
Vibrant Purple |
Various shades, including pink, white, andwhite, red |
Blooming Season |
Summer to Fall |
Summer to Fall |
Mature Height |
10-15 feet |
10-20 feet |
Sun Requirements |
Full Sun |
Full Sun |
Water Needs |
Moderate |
Moderate |
Hardiness Zones |
7-9 |
6-9 |
Special Features |
Vibrant purple blooms |
Variety of flower colors |
How To Take Care for Purple Crape Myrtle Trees
Once planted, crape myrtle trees require minimal care but benefit from a few key practices:
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Watering
Once established, crape myrtles are drought-tolerant. However, during prolonged dry periods, water deeply to ensure the roots receive adequate moisture. Newly planted trees need regular watering to help them establish strong roots. Water deeply at least once a week, adjusting based on weather conditions.
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Pruning
Prune purple crape myrtle trees in late winter or early spring, before new growth begins. This encourages healthy branching and abundant blooms. Remove any dead or crossing branches. To promote a tree-like form rather than a shrub, selectively prune lower branches to create a clear trunk.
-
Fertilizing
Use a balanced fertilizer specifically formulated for flowering trees. Apply in early spring before new growth appears, following the manufacturer's instructions. Repeat fertilizer application once or twice during the growing season, especially if growth appears slow or leaves show signs of nutrient deficiency.
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Mulching
Apply a 2-3 inch layer of mulch around the base of the tree, keeping it a few inches away from the trunk. Mulch helps retain moisture, regulate soil temperature, and suppress weeds. Use organic mulch, such as bark chips or shredded leaves. Replace mulch annually to maintain its effectiveness.
Tips for Pruning Purple Crape Myrtle
Pruning Task |
Timing |
Details |
Deadheading |
Throughout the Season |
Remove spent flowers to encourage new blooms |
Selective Pruning |
Late Winter to Early Spring |
Remove crossed branches and suckers |
Tree Forming |
Early Years |
Shape into tree form by removing lower branches |
Thinning |
Every Few Years |
Thin out overcrowded branches to improve air circulation |
What Are The Common Issues and Solutions Of These Trees?
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Powdery Mildew
A fungal disease that appears as white powdery spots on leaves. Improve air circulation around the tree and use fungicidal sprays if necessary.
-
Aphids
Small insects that feed on new growth, causing distortion and curling of leaves. Control aphids with insecticidal soap or a strong stream of water.
Conclusion
Caring for purple crape myrtle trees is straightforward and rewarding. By planting in a sunny spot with well-drained soil, watering deeply, pruning correctly, and providing occasional fertilizer, you'll enjoy vibrant purple blooms throughout the summer and fall.