Thunderstruck™ Rumblin' Red™ Crape Myrtle (Lagerstroemia x 'JM2') is a fast-growing, small ornamental tree featuring masses of ruby-red flowers against dramatic near-black, ruffled foliage from summer through fall. Growing 12–15 feet tall and 8–12 feet wide, this heat-tolerant, drought-resistant shrub thrives in USDA Zones 6–9 with full sun.