One-Sided Rose Leaf Damage: Herbicide Drift Suspected

When new growth is distorted on only one side of a rose bush—or only certain plants in a row—herbicide drift is the prime suspect.

Diagnosing the Pattern

Roses don't naturally develop problems on just one side. Wrinkled, misshapen leaves on one bush while neighbors are healthy suggests external chemical exposure.

Common Culprit: Glyphosate (RoundUp) Drift

Fine mist from lawn weed treatments can travel surprisingly far. Even neighbor's applications can affect your roses. Glyphosate causes:

• Cupped, strap-like, distorted new leaves
• Stunted, twisted growth
• Symptoms only on exposed side

Recovery Approach

Plants often outgrow mild exposure. If distortion persists, prune affected canes back to healthy foliage. Avoid further chemical exposure. The rose's ability to produce new leaves indicates the vascular system is intact.

Communicate with neighbors about spray timing; use drift-reducing nozzles and calm-day applications to prevent recurrence.