Chinese Pistache Bark Flaking and White Spots: Age-Related Flaking, Lichens Likely

5-year-old Chinese pistache in 100°F+ Texas heat: bark becoming “flaky” is normal aging. White spots on limbs likely lichens—common, harmless.

Advice

• If deep splits appear, that’s a concern.
• Water periodically during extreme heat/wind.
• Send photo if spots change or worsen.

Tree looks healthy otherwise—monitor.