San Pedro Tip Discoloration: Frost or Rot?

Top-Down Discoloration = Not Root Rot

Root rot starts at bottom. Dark purple/black top 6–8 inches suggests:

If Outdoors: Frost Damage

• Recent freeze (even weeks ago) shows delayed tip necrosis.
• Cut off dead tips; plant branches below cut.

If Indoors: Underwatering or Root Rot

• Water thoroughly when soil dry (not teaspoons).
• Soak cycle: wet fully, dry fully – may take month+.
• Check roots if no improvement.

Action

1. Remove discolored tissue to healthy green.
2. Dust with sulfur.
3. Adjust watering per location.

Branching from cut restores form.