Species

Lagerstroemia indicaCrape Myrtle

25 other cultivars

shrub

Potomac Crape Myrtle

Lagerstroemia indica 'Potomac'

The Story

Plant Bio

A deciduous shrub or small tree, prized for its long-lasting, showy summer flower panicles. It features handsome, exfoliating bark that provides significant winter interest, and its foliage often develops attractive fall color. It is a heat-loving plant that thrives in full sun.

A U.S. National Arboretum introduction, 'Potomac' is a vigorous, upright, tree-form crape myrtle noted for its large panicles of clear pink flowers, excellent resistance to powdery mildew, and attractive exfoliating bark.

Uses & Benefits:

Provides vibrant summer color and attractive bark, enhancing garden aesthetics.

Drought-tolerant once established, requires minimal watering.

Supports pollinators like bees and hummingbirds with abundant nectar.

SpeciesLagerstroemia indicaCrape Myrtle

Essentials

At a Glance

Plant Type

Shrub

Height

240 inches

Width

180 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9, 10

Water

Moderate; drought tolerant once established

Humidity

Tolerates high humidity; good air circulation recommended

Lifespan

Over 50 years

Native To

China, Korea

Toxicity

Non-toxic to humans and pets

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck young plants into well-prepared soil in early spring.
Water thoroughly after planting to settle soil around roots.
Prune lightly in late winter to shape and remove dead branches.
Apply mulch around base to retain moisture and suppress weeds.
Feed with balanced fertilizer in spring for vigorous growth.
Monitor for pests and treat organically if needed.

Pro Tip

Ensure excellent drainage and full sun for best flowering.

Keep It Thriving

Care Guide

Do

Water regularly during dry periods 🌱
Prune in late winter to maintain shape
Apply mulch annually to conserve moisture
Use organic fertilizer in spring

Don't

Avoid overwatering to prevent root rot ❌
Don’t prune in late summer or fall
Keep fertilizer away from trunk to prevent rot

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Mulch
Plant
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vibrant summer borderColorful street tree liningDecorative shrub for small gardens

Companion Plants

Lantana SalviaRussian Sage CoreopsisDaylilies

Multiply

Propagation Methods

Good to Know

Common Questions

Potomac Crape Myrtle questions

What zones can Potomac Crape Myrtle grow in?

Potomac Crape Myrtle is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Potomac Crape Myrtle deer resistant?

Yes — Potomac Crape Myrtle is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Potomac Crape Myrtle bloom?

Potomac Crape Myrtle typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Potomac Crape Myrtle need full sun?

Potomac Crape Myrtle does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Potomac Crape Myrtle drought tolerant?

Yes — once established (usually after the first full season), Potomac Crape Myrtle handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.