Choosing the Right Crape Myrtle for Your Landscape

Follow these tips to help you choose the right variety for your yard.
Crape Myrtle (Lagerstroemia indica)

Crape Myrtle (Lagerstroemia indica)

Crape myrtles are popular landscape trees.

Crape myrtles are wildly popular in the South for good reason. They bloom in the summer, when there are few other trees and shrubs providing that service. The larger varieties grow rather quickly, providing a bit of shade in addition to the seasonal color. While there are a handful of insect pests that feed on crape myrtle, the plant itself is very resilient and generally blooms unfazed by this annoyance. Overall they are quite simple to grow and very rewarding with color, shade and architecture for the landscape. As time goes by and newer, more cold hardy varieties become available they will continue to spread into cooler zones. If you are considering adding a crape myrtle to your landscape, it is important to understand how to make a good buying decision.

The Right Location

All crape myrtles are sun lovers, generally cold hardy in zones 7-10, although there are some that will work in zone 6 as well. They are extremely heat-tolerant and quite drought-tolerant once established. Plant them in full sun, amending the soil with soil conditioner to provide a moist and well drained situation that will allow for quick root expansion during the establishment period. A starter fertilizer will help as well. Water deeply once or twice a week during hot weather through the first growing season.

Pruning

Often the choice of a too-large variety dictates severe yearly pruning, which over time creates gnarly, knuckle-like scars. This may be fine when the tree is clothed in foliage but does nothing for the winter landscape. Choose a suitably-sized variety to avoid this situation. Pruning should be done in late winter, just prior to bud swell. Pruning is most important during the early years of a crape myrtle’s life to create the shape you desire. Remove branches smaller than a pencil’s thickness, then prune for good branch structure. Remember, crape myrtles are multi-stemmed shrubs. If you have or want to have a tree form you must remove lower branches and pinch suckers away to create or maintain that look. In severe winters I have had massive stem dieback even on older plants—no problem, I cut the plant to the ground and it grows back.

Routine Maintenance

Other than pruning, care is minimal for crape myrtles. Fertilize in spring with a general purpose shrub fertilizer—cottonseed meal works great—and keep it mulched to maintain consistent soil moisture and temperature. Water periodically during dry spells. Even with it’s superior drought tolerance, there’s no need to allow it to become stressed when it can be avoided.

Pests

The major problems with crape myrtle include Japanese beetle, aphids, whitefly and powdery mildew. Again, providing a good location and proper sizing to fit the site will minimize most of these problems, but monitor for them and treat as needed. Spraying a large crape myrtle can be difficult, so systemic drenches are often the recommendation treatment. I’m not a fan of these types of products for curing infestations, but they seem to do a tolerable job as preventatives where the problems have been known to exist in the past. For a bad infestation on a large specimen, you may want to have a professional handle the job.

The Options

Crape myrtles, like most other commercially available plants, come in a wide selection of varieties. Not only do they differ in bloom color and cold hardiness, but also in mature size, bloom time and disease/insect resistance. All of these features are important as you whittle down the best choice for your landscape. Thankfully some of the work has been done for you.

Where To Purchase

At a reputable garden center in your town, expect the varieties on hand to be well-suited to your hardiness zone. Further, most of the commonly available varieties are superior to those that are outdated in terms of disease and insect resistance. This leaves size and color as the main points to consider as you shop for a new crape myrtle. Since there is a broad color offering in each size range, go ahead and plan for a particular color then choose a variety with your color choice that stays within your size limits. This strategy helps you minimize pruning and avoid problems in the future.

Great Crape Myrtle Varieties 

Large (20 feet +) 

  • 'Natchez' - white
  • 'Tuscarora' - dark coral pink
  • 'Muskogee' - light lavender

Medium (12 - 20 feet)

  • 'Sioux' - dark pink
  • 'Catawba' - purple
  • 'Dynamite' - red

Small (5 - 12 feet)

  • 'Acoma' - white
  • 'Tonto' - fuchsia
  • 'Zuni' - medium lavender
  • Animal series - ‘Pink Pig’, ‘Purple Cow’ and ‘Red Rooster’
  • Magic series - several varieties in shades of coral, pink, purple and white

Dwarf (< 5 feet)

  • 'Chickasaw' - lavender pink
  • 'Centennial' - bright lavender
  • Razzle Dazzle series - several varieties in shades of red, pink and white

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