The Aurora Borealis Kalanchoe, scientifically known as Kalanchoe fedtschenkoi ‘Aurora Borealis’ or ‘Marginata’, is a captivating succulent. Its striking appearance, reminiscent of the celestial northern lights, adds unique visual appeal and vibrant color to any plant collection, whether indoors or outdoors.
Unique Characteristics and Appearance
This Kalanchoe cultivar features variegated, scalloped leaves, typically blue-green or lavender-gray-green. Their distinctive edges are outlined in creamy white, which can blush with soft or vibrant pink when exposed to higher light levels or direct sun. Some leaves may even appear entirely white or pink. Growing as a stemmed succulent, it reaches up to 10-12 inches in height and width, forming an upright, bushy structure. The plant also produces dangling, bell-shaped flowers, often in coral or reddish-orange tones, blooming in winter or spring.
Aurora Borealis Kalanchoe Care
The Aurora Borealis Kalanchoe thrives in bright, indirect light. While it can tolerate some direct sun, particularly morning sun, prolonged exposure to harsh afternoon sun can scorch its leaves and diminish its vibrant variegation. If grown outdoors, filtered light or afternoon shade is beneficial.
Water carefully, allowing the soil to dry out completely between waterings to prevent root rot. When watering, drench the soil thoroughly until water drains from the bottom of the pot, then empty any excess water from the saucer. During its growth period in spring and summer, weekly watering is suitable, while in winter, water every 10-15 days.
A well-draining soil mix is essential for this Kalanchoe. A gritty succulent or cactus potting mix, optionally amended with mineral grit like coarse sand, pumice, or perlite, provides necessary drainage and aeration. Terra cotta pots help wick away excess moisture, reducing the risk of root rot.
The Aurora Borealis Kalanchoe prefers temperatures between 60°F and 85°F (15°C and 29°C). It is sensitive to frost and should be protected if temperatures drop below 30°F. Fertilizing is not strictly necessary but can promote faster, larger growth. During the growing season (spring and summer), a balanced liquid houseplant fertilizer diluted to half strength can be applied every two weeks.
Propagation
Propagating Aurora Borealis Kalanchoe is a straightforward process, primarily done through stem or leaf cuttings. For stem cuttings, select healthy, mature stems that are not flowering. Make a clean cut below a leaf node, then remove the lower leaves. Allow the cut end to “callous” or dry for a few days before planting to prevent rot.
Once calloused, plant the cutting in a well-draining succulent soil mix. Moisten the soil before inserting the cutting about half an inch deep, firming the soil around it. Place the potted cutting in bright, indirect light, and water infrequently until roots establish. This plant also produces small plantlets or offsets along its leaf margins, which can be removed and planted to create new plants.
Common Problems and Solutions
Loss of variegation or less vibrant color often occurs due to insufficient light. Moving the plant to a brighter location with ample indirect light can help restore its characteristic hues. Leggy growth, where stems become elongated with sparse leaves, also indicates inadequate light. Pruning leggy stems can encourage bushier growth, and the cuttings can be used for propagation.
Leaf discoloration, such as yellowing or browning, can signal overwatering or root rot. If leaves become soft and mushy, it is likely due to too much moisture. Allowing the soil to dry out completely between waterings and ensuring proper drainage are key preventative measures. Conversely, wrinkled or shriveled leaves might indicate underwatering; a thorough watering can rehydrate the plant.
The Aurora Borealis Kalanchoe can encounter pests such as mealybugs, aphids, or spider mites. Regularly inspecting the plant helps in early detection. A mild soap solution or organic insecticide can be used for minor infestations. Ensuring good air circulation and avoiding excessive humidity can also help prevent fungal issues.