Winter Leaf Drop on Pencil Euphorbia (Euphorbia tirucalli)

Seasonal Branch Loss on Indoor Pencil Cactus in Ohio

2-foot Euphorbia tirucalli drops many small branches in winter (yellow, then dry). Improved when placed outside in hot, humid NC summer.

Explanation

Normal for this species (becomes a tree in nature) to shed lower branches. Winter indoor conditions (low light, low humidity) accelerate loss.

Tips

• Provide warm, humid winter environment if possible.
• Use grow lights to extend day length (15–18 hrs).
• Accept some seasonal thinning.