Echinopsis calochlora, often called the Easter Lily Cactus or Golden Ball Cactus, is a popular ornamental plant native to South America, specifically Bolivia and Brazil. This cactus is recognized for its spherical to short cylindrical, dark green stems that can grow singly or in groups. Its appearance is enhanced by bright yellow or green spines and large, fragrant white flowers that typically open at night.
Echinopsis Calochlora Care
Light Needs
Echinopsis calochlora thrives in bright light, ideally receiving at least six hours of sunlight daily. While it tolerates some direct morning sun, protect it from harsh afternoon sun to prevent sunburn or yellowing. Browning or yellowing on the sun-facing side indicates too much direct light. Inadequate light can lead to stunted growth or a lack of flowering.
Watering
Proper watering is important for Echinopsis calochlora, as overwatering can quickly lead to root rot. The soil should dry out completely between waterings to prevent moisture accumulation around the roots. During the active growing season (spring and summer), water deeply until water drains from the pot’s bottom. Reduce watering significantly during cooler winter months when the plant enters dormancy, sometimes to once a month or less, or even suspended entirely.
Soil and Potting
A well-draining soil mix is essential for Echinopsis calochlora to prevent waterlogging and root rot. A specialized cactus or succulent mix amended with perlite, pumice, or coarse sand provides necessary drainage and aeration. Terracotta pots are recommended for their breathability and must have drainage holes. Repotting is generally needed every two to three years or when the plant outgrows its container, using a slightly larger pot with fresh soil.
Temperature and Humidity
Echinopsis calochlora prefers moderate temperatures during active growth, ideally around 25°C (77°F) or warmer. While resilient to some temperature fluctuations, protect it from temperatures dropping below 10°C (50°F), especially during winter. This cactus is accustomed to arid environments and prefers low to moderate humidity. High humidity, especially with overwatering, can contribute to fungal issues.
Fertilizing
During the growing season (spring through early fall), Echinopsis calochlora benefits from a balanced, diluted cactus fertilizer. Fertilizing once a month is generally sufficient to support growth and flowering. Avoid over-fertilization, as this can lead to nutrient imbalances. Suspend fertilization entirely during the dormant winter period.
Encouraging Blooms
To encourage Echinopsis calochlora’s large, fragrant blooms, a specific winter dormancy period is beneficial. During cooler months (temperatures typically below 21°C/70°F), drastically reduce watering, or withhold it for three to four months. This cool, dry rest signals spring’s approach, stimulating flower bud development. Adequate light and proper feeding during the growing season also contribute to successful flowering.
Propagating Echinopsis Calochlora
Echinopsis calochlora is commonly propagated through offsets, also known as “pups,” which grow at the base of the mother plant. To propagate, remove a healthy offset by gently twisting or cutting it from the parent plant. After removal, the cut end needs to dry and form a callus, which typically takes a few days to a week. Once calloused, plant the offset shallowly in a well-draining cactus mix, keeping the soil lightly moist until roots develop. While slower, seed propagation is also possible by sowing seeds on a moist, well-draining mix and maintaining warmth and humidity.
Troubleshooting Common Problems
Rotting is a common issue with Echinopsis calochlora, almost always resulting from overwatering. If rotting occurs, check the roots and adjust the watering schedule to allow the soil to dry completely between waterings. A shriveled or wrinkled appearance can indicate either underwatering or severe root rot, requiring an assessment of soil moisture and root health. A lack of blooms often points to insufficient winter dormancy or inadequate light. Pests like mealybugs or spider mites can be addressed with insecticidal soap or rubbing alcohol.