The Angel Cactus (Opuntia microdasys) is a popular houseplant, often called Bunny Ears Cactus or Polka-Dot Cactus. Its charm comes from its flat, segmented, pad-like stems that resemble rabbit ears. This cactus is a favored choice due to its unique appearance and simple care.
Understanding Angel Cactus Characteristics
The Angel Cactus has segmented pads, which are oval or round and measure about 6 inches in diameter. These pads are covered with clusters of tiny, barbed bristles called glochids. Glochids, which can be white, yellow, or reddish-brown, detach easily upon contact and can cause skin irritation.
Angel Cactus Care Requirements
Light
Angel Cactus thrives in bright, direct sunlight, needing at least 6 hours daily. Indoors, a south or west-facing window is suitable, or a grow light can supplement natural light. Insufficient light causes the plant to stretch and appear leggy, a condition known as etiolation.
Watering
This drought-tolerant cactus requires a “soak and dry” watering method. Allow the soil to dry out completely between waterings to prevent root rot. During the active growing season in spring and summer, watering every 2-3 weeks is sufficient. Reduce this to once every 3-4 weeks during the dormant winter months.
Soil and Potting
Well-draining soil is essential for the Angel Cactus. A specialized cactus or succulent potting mix, amended with perlite or pumice for drainage, is recommended. Pots must have drainage holes to prevent waterlogging. Repotting is done every 2-3 years, or when the plant becomes root-bound, preferably in spring.
Temperature and Humidity
Angel Cactus prefers warm, dry conditions and does not tolerate frost. It thrives in temperatures above 70°F (21°C) and can withstand summer temperatures up to 100°F (38°C). As a desert plant, it tolerates low humidity, and misting is not necessary.
Fertilizing
Angel Cactus does not require frequent fertilization. During its active growing season in spring and summer, apply a diluted, balanced cactus or succulent fertilizer once or twice. Dilute the fertilizer to half or quarter strength to prevent nutrient buildup and harm to the plant.
Propagating Angel Cactus
Propagating Angel Cactus is straightforward from pad cuttings. Remove a healthy pad from the parent plant, using tongs or gloves to avoid the glochids. Allow the cut end to callus for a few days to a week; this drying period prevents rot. Once callused, plant the pad cut-side down in well-draining cactus or succulent soil, burying it enough to stand upright. Water sparingly until roots establish, then resume a normal watering schedule.
Troubleshooting Common Angel Cactus Problems
Changes in your Angel Cactus indicate issues. Shriveled pads indicate underwatering. Mushy or yellowing pads signify overwatering and root rot; reduce watering and ensure proper drainage.
Leggy or stretched growth, known as etiolation, indicates insufficient light. Move the cactus to a brighter location to correct this. Yellowing or browning pads can also indicate too much direct sun, especially with crispy textures. The plant may need less intense light or gradual acclimation.
Common pests like mealybugs and scale insects affect Angel Cactus. Treat by dabbing affected areas with rubbing alcohol or applying neem oil.