08/26/2026
Trees are hugely important to our environment!!! Learn more about the care of your trees!
It's hot! We Oklahoman's are no strangers to heat and dry spells, but did you know the effects of a severe drought on your trees can last for years? It's not just about immediate wilting.
Long-Term Effects of Drought on Trees:
A major drought can weaken a tree's entire system, making it vulnerable for 2–7 years afterward (the "Drought Legacy Effect").
🛑 Hydraulic Failure: Air bubbles (embolisms) block water transport in the sapwood, permanently damaging the tree's plumbing.
🛑 Feeder Root Dieback: Essential roots that absorb water and nutrients die off quickly in dry soil.
🛑 Vulnerability to Pests & Disease: Stressed trees have depleted energy reserves and cannot defend themselves against boring insects like bark beetles or fungal diseases.
How You Can Help Your Trees Remain Resilient:
Action taken during and before a drought makes all the difference for long-term health.
✅ Proper Mulching: Maintain a 3-4 inch layer of undyed, organic mulch around the root zone (but not touching the trunk). This retains soil moisture and insulates roots.
✅ Supplemental, Deep Watering: During dry periods, water slowly and deeply around the drip line of your trees to reach critical root zones, rather than frequent shallow watering.
✅ Species Selection: Consider planting drought-tolerant species native to Oklahoma, like Caddo Maple, Oklahoma Redbud, and various resilient Oaks. They are adapted to our unique climate challenges.
Let's protect our community canopy together. 🌳