A Christmas cactus (a tropical epiphyte, not a desert cactus) was kept dry on a patio, then brought indoors and watered heavily. Within a month, flowers and stems began falling off. Greg explains that the roots likely died from prolonged drought, and the sudden soak caused shock. The fix: keep soil evenly moist (not soggy), provide bright indirect light, and give it time—recovery is possible.
The second plant, a Faxon yucca (not a cactus), shows yellowing, black spots, and blackened frond tips. Greg suspects agave beetle larvae, which bore into the root crown and kill the plant. If other yuccas nearby are healthy, treat the soil with a granular "grub or borer" pesticide around the base of unaffected plants. Unfortunately, the infected specimen is likely beyond saving.
| Plant | Issue | Action |
|---|---|---|
| Christmas Cactus | Bud/stem drop after drought then heavy water | Keep soil moist, bright indirect light, wait |
| Faxon Yucca | Yellow → black, frond dieback | Apply borer pesticide to protect others; remove dead plant |
Follow-Up Care for a Toppled Columnar Cactus: Stabilization and Recovery
Identifying a Mystery Columnar Cactus
Fixing Severe Etiolation on a Tall Indoor Cactus ("Cactus Jack")
Trimming 8-10 ft Cacti Growing Through Patio Screen: Need ID First
20-Foot Cactus in New Hampshire: Won't Survive Freeze, Must Cut or Heat
Desert Cactus Care in Phoenix: Watering Schedule for Established Landscape Specimens
Rescuing an Etiolated Mystery Cactus: Light Rehabilitation Protocol
Wedding Symbol Cactus Rotting at Base: Overwatering Rescue
Cactus Soil Substitute: Potting Soil + Sand
Barrel Cactus Root Rot: Diagnosis and Limited Options
Tall Cactus with White Base Discoloration: Rot or Sunburn?
Propagating Corn Plant (Dracaena) and Ficus from Broken Stems
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