Lagerstroemia indica, commonly known as crape myrtle, is an upright, wide-spreading, multi-stemmed, deciduous shrub or small tree in the loosestrife family. It typically grows to 15-25’ tall. It is native from the Himalayas through southern China, southeast Asia and Japan, but has naturalized in the U.S. from Virginia to Arkansas south to Texas and Florida. An additional common name is Lilac of the South in reference to its popularity in southern gardens (USDA Zones 7-9). Key ornamental features include long bloom period, exfoliating bark and superb fall color. Terminal, crepe-papery inflorescences (to 6-18” long) of showy flowers with crimped petals bloom in summer (sometimes to frost) on upright branches. In the wild, flowers are typically rose to red. Cultivated varieties have expanded the flower color range to include white, pink, mauve, lavender and purple. Alternate to sub-opposite, thick and leathery, privet-like, elliptic to oblong leaves (to 3" long) emerge light green often with a tinge of red, mature to dark green by summer and finally turn attractive shades of yellow-orange-red in fall. Flowers give way to round seed capsules which often persist well into winter. Smooth pale pinkish-gray bark on mature branches exfoliates with age. In the St. Louis area where winter injury can be a problem, plants will typically grow to 6-10’ tall. In the deep South, plants will grow much taller if not pruned back. Straight species plants are not sold in commerce. A multitude of named cultivars from dwarf to tree size have been introduced over the years, many of which are hybrids between L. indica and L. faueri.
Growing Instructions
1. Prepare a mixture of half potting soil and half sand, perlite or vermiculite. Put the mixture in a pot with drainage holes in the base.
2. Water the mixture so that it is moist but not wet.
3. Put the seeds on the soil.
4. Cover the seeds with a thin layer of soil.
5. Water the seeds.
6. Place the pots in an area with warm temperatures in full sun or part shade.
7. Water them regularly so that the soil does not dry out.
8. When the seedlings are a few inches tall, they can be transplanted.