Blue Barrel cacti - agaves - aloes - euphorbias - succulents Blue Ghost: a blue branching

Blue Ghost: a blue branching columnar that contrasts the golden spines in a vertical grouping

After Year 1: Every 14 days in summer

Your ice plant gets months to root in before summer

Not ideal for pool-adjacent planting

Blue Barrel cacti - agaves - aloes - euphorbias - succulents Blue Ghost: a blue branchingThe Best Blue Gray Barrel Cactus for Phoenix Rock Gardens Ferocactus glaucescens (Blue Barrel Cactus) is one of the most visually striking barrel cacti you can grow in the Phoenix Valley. Its powdery blue gray body, neat geometric ribs, and golden yellow spines create a color combination that stops people in their tracks. Native to the limestone hills of central Mexico, Blue Barrel adapts beautifully to Phoenix's heat, alkaline soils, and low