Decor & Terrariums
5 min read
Is Your Pencil Cactus Bolting? Stopping Etiolation and an Open-Glass Terrarium Design Guide
Uncontrolled, spindly, and pale growth (etiolation)—often referred to by hobbyists as 'bolting'—is the inevitable result of insufficient light and faulty microclimates in pencil cactus (Euphorbia tirucalli). This guide explores cellular botanical dynamics, corrective pruning protocols, and how to maintain pristine open-glass terrarium arrangements for years to come.