Reviving a Dormant Dendrobium with Crusty Canes

Hannah's Dendrobium lost flowers and leaves a year ago, leaving two long canes with dry, crusty sheaths over green tissue. The expert identified the crust as a normal protective sheath. Dendrobiums lack pseudobulbs, so they rely on a rest period with only occasional misting to prevent shriveling. Overwatering during dormancy causes weak growth or rot.

Two likely causes for no new growth: prolonged dormancy (just mist until growth starts) or rotted growth "eyes" at the cane base. Check for slight swelling at the base—if present, eyes are viable. Warm growers need heat and sun once new growth reaches 4–5 cm. Summer outdoors above 50°F.