Limiting Growth of a Tall Euphorbia Indoors

Mike's 8'6" Euphorbia ammak (likely) neared his 10'6" vaulted ceiling. He asked about limiting height, outdoor survival in Central Texas, and topping.

Options

• Don't repot—larger pot = more growth.
• Top it: Cut top 2–3 ft, let callous, reroot. You gain height and a new plant.
• Outdoors in Central Texas: Risky—most Euphorbias freeze at 25–30°F. Check euphorbia.de for species hardiness.

Research

Google the exact species for max height. Contact the site's webmaster (Frank) with a photo for expert ID.