Oklahoma residents are seeing an unusual sight this August: trees across the state turning color or dropping leaves weeks earlier than normal. The rapid leaf loss is a direct response to the flash drought and one of the hottest Augusts on record, state arborist Damon Maple explained.
Why trees are shedding leaves early
When soil dries out, trees enter a preservation mode, reallocating moisture to essential functions and shedding foliage to reduce water loss. Maple said this is a natural survival strategy, but the condition can become worrisome if the leaves turn brown and remain on the branches, indicating the tree may have given up.
Species most at risk
Maple identified sycamores, maples and elms growing near creeks or rivers as the most affected. These species rely on consistent moisture and are less drought‑tolerant. In contrast, oak and hickory trees, which are more drought‑resistant, tend to show fewer signs of stress.
Age matters
Young trees are especially vulnerable. “If a big event like this drought happens the same year a tree is trying to establish itself, it can push it over the edge,” Maple warned. Older, established trees generally have deeper root systems and can better withstand prolonged dry periods.
Practical care tips for homeowners
Maple recommends a few straightforward steps to help trees survive the heat:
- Mulch rings: Apply a 2‑ to 4‑inch layer of organic mulch around the base of the tree, keeping the mulch a few inches away from the trunk. This helps retain soil moisture and moderates temperature.
- Deep irrigation: Water slowly and deeply rather than frequent shallow sprinklings. This encourages roots to grow deeper where moisture is more reliable.
- Watch for wilting: If leaves begin to droop or look wilted, it’s a clear sign the tree needs water.
- Avoid fertilizers: Adding fertilizer during a drought can stress trees further. Consistent watering is more beneficial until normal moisture levels return.
By following these guidelines, Oklahoma homeowners can give their trees a better chance of surviving the current heat wave and emerging healthy when the rains return.
Looking ahead
Maple emphasized that while the current conditions are severe, they also serve as a reminder of the importance of proactive tree care. Preparing trees for future droughts—through proper planting locations, selecting drought‑resistant species, and maintaining healthy soil—will help preserve Oklahoma’s green canopy for generations.
Original reporting: Oklahoma City News Feed (HLL/CB) — read the source article.
