Rescuing Rotting Flat Cactus (Opuntia-type): Cut and Reroot

Flat-stemmed cactus (likely Opuntia or Consolea) with foul-smelling brown base rot: cut above rot, callus, reroot in fresh mix.

Rescue Steps

1. Cut 2-3" above highest rot
2. Inspect cross-section: clean green
3. Callus 2 weeks (shade, horizontal)
4. Plant pads 1/3 deep in dry cactus mix
5. No water 2 weeks
6. Bright light, no direct sun

Soil & Pot

• Discard old soil/rocks (pathogen reservoir)
• New pot: terra cotta with drainage
• Mix: 50% pumice, 50% cactus soil

Success Factors

• Firm, plump pads = viable
• No wrinkling during callus
• Roots in 3-6 weeks
• New pads in 2-3 months

If Fails

Discard. Flat cacti root easily—failure means systemic infection.

ID helps: Opuntia (pads), Consolea (tree-like), Nopalea (spineless). All similar rescue.