Dynamite Crape Myrtle

Growth rate: Moderate to fast growth rate; growing about 3-5 feet per year. Reaches 20-30 feet tall and 10-15 feet wide at maturity.

Please note: Images on our website depict plants and trees at full maturity to showcase their expected grown characteristics. These images are illustrative examples only and do not represent the size of plants or trees upon delivery.

Pruning: The Dynamite Crape Myrtle generally requires minimal pruning. However, to promote a more compact shape or remove any dead or damaged branches, prune in late winter or early spring before new growth emerges.

Fertilization: Fertilize the tree in early spring with a balanced slow-release fertilizer formulated for flowering trees. Follow the package instructions for application rates and apply evenly around the tree's drip line. Avoid excessive fertilization, as it may lead to excessive foliage growth at the expense of blooms.

Winter Protection: In zones 5-10, where temperatures can drop significantly, provide winter protection for the Dynamite Crape Myrtle. Apply a layer of mulch around the base of the tree to insulate the roots and protect them from freezing. Additionally, if severe winter weather is expected, consider covering the tree with burlap or a frost cloth to shield it from harsh conditions.


When planting the Dynamite Crape Myrtle Tree (Lagerstroemia indica 'Dynamite'), select a planting location that receives full sun exposure for optimum flowering. The soil should be well-draining and fertile. Dig a hole that is twice as wide and slightly shallower than the root ball. Place the tree in the hole, ensuring that the top of the root ball is level with or slightly above the surrounding soil. Backfill the hole with soil, gently firming it around the roots. Water thoroughly after planting and apply a layer of mulch around the base of the tree to conserve moisture and suppress weed growth.

The Dynamite Crape Myrtle thrives in full sun exposure, requiring at least 6 to 8 hours of direct sunlight per day to ensure abundant flowering. Water deeply and regularly, especially during the tree's first growing season, to establish a strong root system. Once established, the tree is moderately drought-tolerant but will benefit from regular watering during prolonged dry spells. Water when the top few inches of soil feel dry to the touch.

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The Dynamite Crape Myrtle is known for its impressive size and rapid growth rate. Here are more details about its size, growth rate, and time to reach maturity:

Height: Dynamite Crape Myrtle typically reaches a mature height of approximately 15 to 20 feet. In optimal growing conditions, it can grow even taller. It is considered a large to medium-sized shrub or small tree.

Spread (Width): The mature spread or width of Dynamite Crape Myrtle is generally around 12 to 15 feet or more. It forms a broad, rounded canopy as it matures.

Growth Rate: Dynamite Crape Myrtle is known for its fast growth rate, especially when it's young and actively growing. It can put on several feet of new growth each year under ideal conditions.

Annual Growth: On average, Dynamite Crape Myrtle can grow between 1 to 2 feet in height per year when it's establishing itself and actively growing. However, its growth rate may vary depending on factors like local climate, soil quality, and care.

Time to Maturity: The time it takes for Dynamite Crape Myrtle to reach its mature height and width can vary, but it typically takes several years, usually around 5 to 10 years, to approach its full mature size. During this period, it undergoes rapid growth and becomes an increasingly prominent landscape feature.

Given its size and growth rate, Dynamite Crape Myrtle is often used as a shade tree, a focal point in larger landscapes, or to provide a stunning burst of color with its vibrant red flowers. When planting this crape myrtle variety, it's essential to consider its mature size and provide adequate space for it to grow and flourish. Pruning and maintenance can help control its size and shape, but it will eventually reach its full potential in landscapes where space allows.

The best time of year to plant Dynamite Crape Myrtles or any crape myrtle variety is typically in the late winter to early spring or in the early fall. Here are some details about the best times for planting:

1. Late Winter to Early Spring (February to April):
Planting crape myrtles in late winter to early spring, just before new growth begins, is an excellent choice. This allows the plant to establish its root system before the onset of hot summer weather. By planting in late winter or early spring, you give the crape myrtle ample time to adapt to its new environment and potentially bloom in the same growing season.

2. Early Fall (September to October):
Early fall is another suitable planting time for crape myrtles, as the weather begins to cool down and there is less heat stress. Planting in early fall provides a window for root establishment before winter dormancy, allowing the plant to be well-prepared for the following spring.

While these are the optimal times for planting crape myrtles, you can also plant them during other parts of the growing season if necessary. However, avoid planting during the hot summer months when the plant may experience stress due to high temperatures and dry conditions.

When planting Dynamite Crape Myrtles or any crape myrtle variety, follow these general planting guidelines:

Select a Suitable Location: Choose a planting site with well-draining soil and full sun to partial shade. Ensure there is enough space for the mature size of the crape myrtle.

Prepare the Soil: Amend the soil with organic matter to improve drainage and fertility. Crape myrtles thrive in slightly acidic to neutral soil.

Dig a Proper Hole: Dig a hole that is as deep as the root ball but at least two times wider. This provides ample room for the roots to spread.

Plant at the Right Depth: Set the crape myrtle in the hole so that the top of the root ball is level with the surrounding soil surface.

Backfill and Water: Fill in the hole with soil, tamp it down gently, and water thoroughly to settle the soil and eliminate air pockets.

Mulch: Apply a layer of mulch around the base of the plant to conserve moisture, regulate soil temperature, and suppress weeds.

Water Regularly: Keep the soil consistently moist, especially during the first year after planting, to help the crape myrtle establish its root system.

By planting crape myrtles at the right time of year and providing proper care, you can enjoy their beautiful blooms and attractive growth habit in your landscape.

The Dynamite Crape Myrtle is renowned for its long and prolific blooming period, which adds vibrant color and visual interest to the landscape. Here are some details about the duration of its bloom:

Bloom Period: Dynamite Crape Myrtle typically starts its blooming period in late spring to early summer, generally in May or June, depending on the region and local climate conditions.

Duration: The blooming period of Dynamite Crape Myrtle can last for several weeks to a few months. It is known for its extended flowering season.

Continual Blooms: One of the distinctive features of Dynamite Crape Myrtle is its ability to produce continuous and successive waves of flowers throughout the summer and sometimes into early fall. This continuous bloom occurs on new growth.

Deadheading: Removing spent flower clusters (deadheading) during the growing season can encourage the plant to produce more blooms and extend the blooming period.

Vibrant Red Blooms: Dynamite Crape Myrtle is particularly prized for its brilliant red flower clusters, which stand out in the landscape and add a striking burst of color.

The extended blooming period and continuous production of flowers make Dynamite Crape Myrtle a popular choice for adding long-lasting beauty to gardens, streetscapes, and landscapes. With proper care and maintenance, you can enjoy its vibrant blooms throughout much of the growing season.

When planting Dynamite Crape Myrtle, the spacing between individual plants should take into account their mature size and how you want them to grow in your landscape. Here are some general guidelines for spacing Dynamite Crape Myrtles:

Single Planting: If you intend to grow Dynamite Crape Myrtle as individual specimen plants, space them approximately 8 to 12 feet apart. This spacing allows each plant to develop its own distinct shape and size while providing adequate room for growth.

Hedge or Screen: For creating a crape myrtle hedge or screen, space the plants approximately 5 to 8 feet apart. This spacing allows the plants to grow together over time, forming a dense and uniform barrier.

Group Planting: When planting Dynamite Crape Myrtles in groupings or clusters, consider spacing them about 8 to 10 feet apart. This spacing provides a balanced and visually appealing arrangement.

Container Planting: If you plan to grow Dynamite Crape Myrtle in large containers or pots, select appropriately sized containers with a diameter of at least 18 inches or more. You can space container-planted crape myrtles as close together as desired, keeping in mind the size of the containers.

Landscape Design: The spacing can also be influenced by your landscape design goals. Varying the spacing between plants can create visual interest and focal points within your garden or landscape.

Remember that Dynamite Crape Myrtle is known for its vigorous growth and can become a large shrub or small tree. Proper spacing ensures that the plants have enough room to reach their full potential without becoming overcrowded. Adequate spacing also promotes good air circulation and minimizes the need for excessive pruning.

Before planting, measure and mark out the spacing based on your chosen design and the mature size of the crape myrtles. This planning will help you achieve the desired aesthetic and ensure the long-term health and beauty of your landscape.

Crape myrtles, including Dynamite Crape Myrtles, typically begin to bloom within the first 2-3 years after planting, usually in their second or third growing season. However, the exact timing of when crape myrtles start to bloom can vary based on several factors:

Age of the Plant: Young crape myrtle plants may take a bit longer to establish their root systems and allocate energy toward flowering. It's common for them to produce more significant blooms as they mature.

Growing Conditions: Favorable growing conditions, including adequate sunlight, proper soil preparation, and consistent watering, can encourage earlier blooming.

Cultivar Variability: Different crape myrtle cultivars may have varying bloom onset times. Some cultivars may start blooming earlier in their development than others.

Climate: Local climate and weather patterns can influence when crape myrtles begin to bloom. In warmer climates, they may bloom earlier in the growing season.

Pruning: Pruning practices can also impact flowering. Heavy pruning, especially during the growing season, can remove flower buds and delay blooming.

As a general guideline, you can expect your Dynamite Crape Myrtles to start producing significant blooms within the first 2 to 3 years after planting. To encourage earlier and more abundant flowering, provide optimal care, including proper watering, fertilization, and pruning. Once they begin blooming, these crape myrtles are known for their extended and colorful flowering season throughout the summer and into the fall.

The Dynamite Crape Myrtle is a versatile and popular ornamental shrub or small tree that can thrive in various landscape settings. To choose the best place to plant Dynamite Crape Myrtles, consider the following factors:

Sunlight: Dynamite Crape Myrtles thrive in full sun, which means they should receive at least 6 to 8 hours of direct sunlight per day. Choose a location in your landscape where they can enjoy plenty of sunlight to promote healthy growth and abundant flowering.

Soil Conditions: Ensure that the soil in the planting area is well-drained. Dynamite Crape Myrtles prefer soil that is rich in organic matter and slightly acidic. Amending the soil with compost or organic matter can improve its quality.

Space: Keep in mind the mature size of Dynamite Crape Myrtles. These plants can become relatively large, so provide enough space for them to grow without overcrowding other plants or structures.

Air Circulation: Good air circulation is important to prevent fungal diseases. Avoid planting Dynamite Crape Myrtles in areas where they might be crowded by other plants or structures that could restrict airflow.

Landscape Design: Consider your overall landscape design and how Dynamite Crape Myrtles will fit into it. They can be used as specimen plants, in mixed borders, as street trees, along property lines for screening, or in groupings to create focal points.

Visual Impact: Dynamite Crape Myrtles are prized for their vibrant red flowers. Plant them in locations where their stunning blooms can be prominently displayed and enjoyed, such as near patios, entrances, or along driveways.

Maintenance: Be aware of the maintenance requirements, including pruning and deadheading, when selecting a planting location. Accessibility for routine care is important.

Climate: Dynamite Crape Myrtles are well-suited for warm and temperate climates. They are generally hardy in USDA Hardiness Zones 7-10. Ensure that your climate is conducive to their growth.

Watering: Provide consistent moisture during the establishment period, but be sure to plant Dynamite Crape Myrtles in areas with proper drainage to prevent waterlogged soil.

Overall, the best place to plant Dynamite Crape Myrtles is where they can receive ample sunlight, have well-drained soil, and fit into your overall landscape design. Their stunning red blooms and attractive bark make them a valuable addition to gardens and landscapes, and they can thrive in a variety of settings when their needs are met.

If your Dynamite Crape Myrtle is not blooming, there could be several reasons for this issue. Crape myrtles are generally known for their prolific blooms, so when they don't flower, it's essential to address the potential causes. Here are some common reasons why crape myrtles may not bloom and solutions to consider:

Insufficient Sunlight:
Crape myrtles require full sun to partial shade to produce abundant blooms. Lack of adequate sunlight can result in reduced flowering.
Solution: Ensure that your crape myrtle is planted in a location where it receives at least 6 to 8 hours of direct sunlight each day.

Pruning at the Wrong Time:
Pruning crape myrtles at the wrong time, especially in late winter or spring, can remove flower buds and inhibit blooming.
Solution: Prune your crape myrtle immediately after flowering in late spring or early summer. Avoid heavy pruning during the growing season.

Over-Pruning:
Excessive or severe pruning can remove too much growth and reduce flowering potential.
Solution: Prune crape myrtles selectively and lightly to maintain their shape, and avoid removing more than one-third of the plant's canopy at a time.

Immaturity:
Young crape myrtles may take a couple of years to establish themselves before producing abundant blooms.
Solution: Be patient and provide proper care to help the plant develop and mature.

Nutrient Deficiencies:
Nutrient imbalances, particularly a lack of phosphorus or potassium, can affect flowering.
Solution: Fertilize your crape myrtle with a balanced, slow-release fertilizer formulated for flowering shrubs in the spring. Consider a soil test to determine any specific nutrient deficiencies.

Water Stress:
Drought stress or inconsistent watering can lead to reduced flowering.
Solution: Ensure that your crape myrtle receives regular, deep watering during dry spells, especially during the growing season.

Disease or Pest Issues:
Diseases or pest infestations can weaken crape myrtles and affect their ability to bloom.
Solution: Inspect your plant for signs of disease or pests and treat as needed with appropriate control measures.

Varietal Differences:
Some crape myrtle varieties may naturally have different flowering patterns or may bloom less profusely than others.
Solution: Understand the typical flowering pattern of your specific crape myrtle variety and adjust your expectations accordingly.

Environmental Stress:
Extreme environmental conditions, such as severe cold snaps or excessive heat, can impact flowering.
Solution: Protect your crape myrtle from extreme conditions when possible and provide proper care to help it recover.

Old Age:
As crape myrtles age, they may naturally produce fewer blooms.
Solution: Consider rejuvenation pruning to stimulate new growth and flowering in older crape myrtles.

By addressing the specific issues affecting your crape myrtle and providing the appropriate care, you can encourage it to bloom and thrive in your landscape.

Proper watering is essential for the health and well-being of Dynamite Crape Myrtle. The watering needs of this plant may vary depending on factors such as climate, soil type, and local conditions. Here are some general guidelines for watering Dynamite Crape Myrtle:

Establishment Period: During the first year after planting, it's crucial to keep the soil consistently moist but not waterlogged to help the plant establish its root system. Water deeply and regularly, especially during hot and dry spells.

Mature Trees and Shrubs: Once established, Dynamite Crape Myrtle is relatively drought-tolerant. However, it still benefits from regular watering, especially during periods of prolonged drought. As a general rule, provide about 1 inch of water per week through rainfall or irrigation.

Deep Watering: When you do water, ensure that it penetrates the root zone, which can be quite deep. Watering deeply encourages the roots to grow deeper into the soil, making the plant more resilient to dry conditions.

Soil Drainage: Dynamite Crape Myrtle prefers well-drained soil. Avoid overwatering, which can lead to root rot. Check the soil's moisture level before watering to determine if it's necessary.

Mulching: Applying a 2- to 3-inch layer of organic mulch, such as wood chips or shredded bark, around the base of the plant helps retain soil moisture, regulate soil temperature, and reduce weed competition. Mulch also minimizes evaporation.

Rainfall: Take natural rainfall into account when determining your watering schedule. If your region receives regular rainfall, you may not need to water as frequently.

Watering Schedule: It's better to water deeply and less frequently rather than shallow, frequent watering. Infrequent deep watering encourages the development of a deep and healthy root system.

Morning Watering: Watering in the morning allows the plant's foliage to dry quickly, reducing the risk of fungal diseases. Avoid evening watering, as the leaves will remain wet overnight.

Summer Heat: During periods of extreme heat, your Dynamite Crape Myrtle may benefit from additional watering to prevent stress and promote blooming.

Winter Watering: In winter, reduce the frequency of watering, especially in regions with cold winters. Crape myrtles are dormant during this time and require less moisture.

Remember that it's essential to strike a balance with watering. While Dynamite Crape Myrtle can tolerate some drought, it will perform best and produce more abundant blooms with consistent, appropriate moisture. Monitor the soil's moisture level and adjust your watering schedule accordingly to meet the plant's needs while avoiding overwatering.

The Dynamite Crape Myrtle and the Red Rocket Crape Myrtle are two distinct cultivars of crape myrtle known for their vibrant red blooms and ornamental qualities. While they share some similarities, they also have differences that set them apart. Here's a comparison of Dynamite and Red Rocket Crape Myrtles:

Dynamite Crape Myrtle (Lagerstroemia indica ‘Dynamite’):

Mature Size: Dynamite Crape Myrtle is known for its larger size. It typically reaches a mature height of 15 to 20 feet and has a spread of about 12 to 15 feet. It forms a broad, rounded canopy.

Bloom Color: The blooms of Dynamite Crape Myrtle are bright red, creating a stunning display of red flowers during the summer months. The vibrant red color is a hallmark of this cultivar.

Blooming Period: Dynamite Crape Myrtle has an extended blooming period, with continuous and successive waves of red flowers throughout the summer and into early fall. It is known for its long-lasting and prolific blooms.

Foliage: The foliage of Dynamite Crape Myrtle is typically green, and the leaves have a lance-shaped or elliptical appearance.

Red Rocket Crape Myrtle (Lagerstroemia indica 'Red Rocket'):

Mature Size: Red Rocket Crape Myrtle is considered a moderately sized crape myrtle. It generally reaches a mature height of 8 to 12 feet with a similar spread.

Bloom Color: Like Dynamite, Red Rocket Crape Myrtle produces vibrant red blooms. The red flowers are a striking feature of this cultivar.

Blooming Period: Red Rocket Crape Myrtle also has an extended blooming period, with abundant red flowers that appear in late spring to early summer and continue into the fall. It is known for its profuse and long-lasting flowering.

Foliage: The foliage of Red Rocket Crape Myrtle is typically green and features elliptical leaves similar to other crape myrtle varieties.

In summary, both Dynamite and Red Rocket Crape Myrtles are prized for their red blooms and extended flowering periods. The main differences between them are their mature sizes, with Dynamite being larger, and their specific growth habits. Gardeners can choose between these cultivars based on their space limitations and landscaping preferences while enjoying the beauty of vibrant red crape myrtle flowers.

Pruning your Dynamite Crape Myrtle is essential to maintain its shape, encourage healthy growth, and promote abundant flowering. Proper pruning helps prevent overgrowth and allows air and sunlight to penetrate the plant, reducing the risk of disease. Here are guidelines for pruning Dynamite Crape Myrtle:

Timing: Pruning is typically done in late winter or early spring, before new growth begins. Avoid heavy pruning during the growing season, as it can remove flower buds and reduce blooming.

Tools: Use sharp and clean pruning shears or loppers for cutting. Make clean, angled cuts to minimize damage to the plant.

Pruning Steps:

Remove Dead or Diseased Wood: Begin by inspecting the crape myrtle for dead or diseased branches. Cut these back to the healthy wood, making clean cuts just above a healthy bud or branch junction. Dispose of the removed material to prevent the spread of disease.

Remove Suckers and Low Growth: Dynamite Crape Myrtle can produce suckers or low, unwanted growth from the base of the plant. Remove these suckers and any branches that are growing too close to the ground.

Thin Out Overcrowded Branches: To improve air circulation and reduce overcrowding, selectively thin out branches that are crossing each other or growing inward. Focus on removing branches from the interior of the canopy.

Raise the Canopy: Raise the canopy by removing lower branches that are obstructing pathways, views, or other plantings. This can be especially important for maintaining a clean and attractive appearance.

Selectively Shorten Branches: If necessary, you can selectively shorten or reduce the length of branches to maintain the desired shape and size. Make cuts just above a healthy bud or lateral branch. Avoid "topping" or severe pruning, as it can lead to weak growth and reduced flowering.

Deadheading (Optional): While not necessary for crape myrtles, deadheading (removing spent flower clusters) can encourage the plant to produce more blooms. If you choose to deadhead, do so after the initial bloom and continue throughout the growing season as needed.

Note: Avoid excessive or "crape murder" pruning, which involves cutting the plant back severely. This practice can harm the plant's long-term health and lead to excessive regrowth that may require further maintenance.

Remember that crape myrtles are resilient, and minor pruning is usually sufficient to maintain their appearance and health. When in doubt, err on the side of caution and prune conservatively. Regular, light pruning is often more beneficial than infrequent heavy pruning for the overall health and aesthetics of your Dynamite Crape Myrtle.