Opuntia microdasys var. albospina - White Bunny Ears

**Morphological Characteristics**

Opuntia microdasys var. albospina, commonly known as "White Bunny Ears," is a charming variant of the Opuntia microdasys species, belonging to the Cactaceae family. Native to northern and central Mexico, this cactus is renowned for its distinctive appearance, featuring flat, oval-shaped pads that grow in pairs, resembling the ears of a rabbit.

The pads are a bright green color and are densely covered with small, evenly spaced clusters of white glochids (tiny, hair-like spines). These glochids give the plant a soft, fuzzy look, though they can detach easily and irritate the skin upon contact. Each pad can grow up to 10-15 cm (4-6 inches) long and 7-10 cm (3-4 inches) wide. White Bunny Ears may occasionally produce small, yellow, cup-shaped flowers in the summer, followed by reddish-purple fruits under ideal conditions.

**Growth Habits**

White Bunny Ears is a moderately fast-growing cactus that forms a bushy, multi-stemmed clump over time. It tends to grow upright initially but may sprawl slightly as the plant matures. It typically reaches a height and width of 30-60 cm (12-24 inches) when grown under favorable conditions. It is an excellent choice for container gardening, xeriscaping, and decorative displays, thriving both indoors and outdoors in warm climates.

**Maintenance Points**

• Lighting: Prefers full sun to bright, indirect light. Outdoors, it should be placed in a sunny location with some protection from harsh afternoon sun in extremely hot climates. Indoors, a south- or west-facing window is ideal.

• Watering: Water thoroughly but infrequently. Allow the soil to dry out completely between waterings. Reduce watering during the winter months when the plant enters dormancy. Overwatering can easily lead to root rot.

• Soil: Use a fast-draining cactus or succulent mix. Adding coarse sand, perlite, or pumice to the soil improves drainage and reduces the risk of root issues.

• Temperature: Ideal temperatures are between 18-30°C (65-86°F). It is sensitive to frost and should be protected from temperatures below 0°C (32°F). In cooler regions, it should be grown in containers and brought indoors during the winter.

• Fertilization: Fertilize once a month during the growing season (spring and summer) with a diluted, balanced cactus fertilizer. Do not fertilize during the dormant winter period.

• Potting: Ensure pots have adequate drainage holes. Repot every 2-3 years or when the plant becomes root-bound, ideally in the spring.

• Humidity: Prefers low humidity environments. Good air circulation is beneficial for preventing fungal problems.

**Reproduction Method**

White Bunny Ears can be easily propagated through pad cuttings and, less commonly, by seeds.

1. **Pad Cuttings:**

• Selection: Gently twist or cut off a healthy pad using gloves or tongs to avoid glochid contact.

• Callusing: Allow the pad to dry and callus for several days in a shaded, dry area to prevent rot when planted.

• Planting: Insert the callused end into a well-draining cactus mix, just deep enough to stand upright.

• Aftercare: Place in a warm, bright location with indirect sunlight and water lightly after a few days. Roots typically develop within 2-4 weeks.

2. **Seeds:**

• Sowing: Sow seeds on the surface of a sterile, well-draining mix. Lightly cover with a thin layer of sand or fine soil.

• Germination: Maintain slightly moist conditions and keep temperatures between 21-27°C (70-80°F). Germination may take several weeks.

• Transplanting: Once seedlings are large enough to handle, transplant them into individual pots.

**Additional Tips**

• Pest Control: Monitor for common pests such as mealybugs, spider mites, and scale. Treat infestations promptly with insecticidal soap or neem oil.

• Disease Prevention: Ensure excellent drainage and avoid overwatering. Remove any damaged or rotting pads promptly.

• Handling: Always use gloves or tools when handling to avoid contact with glochids.

• Flowering Encouragement: Providing bright light and a proper winter dormancy period (cooler temperatures, minimal watering) can encourage flowering in the summer.

With its adorable appearance and relatively easy care, Opuntia microdasys var. albospina 'White Bunny Ears' is a delightful addition to any cactus or succulent collection, bringing a whimsical and sculptural element to gardens and indoor spaces alike.