Why Your Globe Willow Turns Yellow in Summer Heat

Globe willows burst into vibrant green each spring, but desert summers often leave them yellowing and browning at the tips. The culprit? Almost certainly underwatering. Willows are thirsty trees—they demand far more moisture than most species.

How to Water Properly

Give your tree a deep soak every third day unless rain arrives. Place a shallow pan beneath the canopy, run the sprinkler, and stop once the pan collects one inch of water. This ensures moisture penetrates deep into the root zone.

Lock in Moisture with Mulch

Apply two to three inches of organic mulch (wood chips, bark, or straw) in a wide ring around the base—never piled against the trunk. Mulch conserves soil moisture, moderates temperature, and suppresses weeds that compete for water.

With consistent deep watering and a mulch blanket, your globe willow should stay lush and green through even the hottest desert summer.