Joseph's Coat Cactus
Opuntia monacantha var. monstruosa
A unique succulent cactus featuring irregularly shaped, elongated, and often twisted segmented stems with a glossy green appearance, scattered areoles, and small spines.
- Light
- Full sun to very bright indirect light, requiring at least 6 hours of direct sunlight daily
- Water
- Water deeply only when the potting medium is entirely dry, roughly every 2 to 3 weeks depending on ambient humidity and temperature, reducing frequency significantly during winter dormancy
- Growth
- Perennial succulent shrub with an upright, branching, and sometimes contorted form, growing up to 3 to 6 feet tall and 2 to 3 feet wide with a slow to moderate growth rate
Care instructions
Provide bright direct sunlight, allow the soil to dry completely between thorough waterings, use a well-draining cactus potting mix, and feed sparingly with a balanced succulent fertilizer during the growing season.
Growing details
Sunlight
Full sun to very bright indirect light, requiring at least 6 hours of direct sunlight daily
Watering
Water deeply only when the potting medium is entirely dry, roughly every 2 to 3 weeks depending on ambient humidity and temperature, reducing frequency significantly during winter dormancy
Soil
Fast-draining sandy or gravelly cactus and succulent potting mix with a neutral to slightly acidic pH range of 6.0 to 7.0
Hardiness zone
USDA zones 9 through 11, intolerant of freezing temperatures and frost
Growth habit
Perennial succulent shrub with an upright, branching, and sometimes contorted form, growing up to 3 to 6 feet tall and 2 to 3 feet wide with a slow to moderate growth rate
Bloom season
Summer, producing yellow, cup-shaped flowers occasionally on mature specimens grown in optimal outdoor conditions
Propagation
Propagated easily through stem segment cuttings allowed to callus for several days before planting in dry, well-draining soil
Common pests & issues
Prone to root rot if overwatered or kept in poorly draining soil; occasional pests include mealybugs and scale insects, which can be treated with rubbing alcohol or insecticidal soap
Similar species
Opuntia microdasys (Bunny Ears Cactus), which features distinct pad shapes and clusters of glochids rather than the elongated, twisted monstrose growth form of this variety