Single-Branch Decline in Yaupon Holly: Prune and Water

Single-Branch Decline in Yaupon Holly: Prune and Water

When one of two yaupon holly branches yellows and defoliates while the other thrives, the cause is usually localized: a root injury, girdling root, canker, or borer on that specific stem. Extreme heat (100°F+) exacerbates the stress.

Simple Fix

• Prune the declining branch back to healthy wood (green cambium).
• Inspect the cut surface for discoloration or insect tunnels.
• Water deeply once a week during heat waves; yaupons are drought-tolerant but not immune.
• Apply 2-3 inches of mulch to conserve soil moisture.

The remaining branch will typically fill in. Yaupons are tough, resilient shrubs in Texas landscapes.