Queen Palm Decline in Planter Box: Root Barrier Stress

The Situation

Queen palm in New Orleans survived last winter, put out new growth, then declined over 6–8 weeks. New spear died; existing fronds dying. Planted in sidewalk planter with sun. Trunk green, no fungus. Fertilizer didn't help. Cat urine odor noted, but liriope nearby thrives.

Root Cause: Planter Confinement

The "planter type environment" is the culprit. Roots have hit a barrier (bottom/sides of planter), causing chronic stress. Cold damage compounded it. The palm has exhausted its soil volume.

Options

• If possible, expand planter or break bottom barrier.
• Otherwise, decline is likely irreversible.
• Cat urine is not the primary issue.