Corn Plant Leaf Spots: Root, Water, or Soil Issues

Four Causes of Brown Spots

1. Soil too dry.
2. Roots compacted at pot bottom.
3. Soil too acidic.
4. Mineral salt buildup (hard water/over-fertilizing).

Fixes

• Unpot: trim circling bottom roots, add soil to bottom, repot same size.
• If roots envelop entire rootball, loosen and go up 1 pot size.
• Use filtered/distilled water if tap is hard.
• Stop fertilizing—corn plants don't need it.
• Add horticultural lime if soil acidic.

Trim spotted leaves; they won't regreen.