Dead Base on Tall Thin Cactus: Cut 2" Above Dead, Callus 3 Weeks, Replant

Very Tall Thin Cactus Drying from Bottom, Top Sprouting Arms—How to Cut and Re-root?

Owner asks where to cut and how to replant.

Cut 2" Above Dead Tissue

Greg: cut 2 inches above dead zone, callus ≥3 weeks, plant 4" deep, water then dry between waterings. May take time to root; be patient.