White Owl's Eyes not pool-friendly one plant fills out within

one plant fills out within a season or two

2–3 feet in containers or tight groupings

Absolutely — this is one of the best crested cacti for container growing

Watering White Dot Prickly Pear in Phoenix

White Owl's Eyes not pool-friendly one plant fills out withinThe Prettiest White Clumping Cactus for Phoenix Container Gardens Mammillaria parkinsonii (White Owl's Eyes Cactus) is a stunning silvery white clustering cactus prized by collectors and landscape designers alike. Its dense white radial spines create an almost woolly appearance, and in spring it erupts with a crown of delicate pink flowers. This compact, easy care species thrives in the Phoenix Valley's heat and is perfect for containers, rock garden