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Rhipsalis ramulosa Red Coral, commonly known as the Red Coral Cactus, is a rare and beautiful epiphytic cactus from the tropical forests of Central and South America. Unlike typical desert cacti, this species thrives in warm, humid, and shaded environments, where it grows naturally in the canopy of trees.
The Red Coral variety is particularly admired for its long, flat, ribbon-like stems, which turn brilliant shades of red, pink, or coral when exposed to bright light. In lower light, the stems remain green with a soft blush along the edges. The cascading growth habit gives it a delicate, coral-like appearance, making it ideal for hanging planters or high shelves where its vibrant trails can be appreciated.
In spring and summer, mature plants produce clusters of small, white flowers along the stem edges, followed by tiny, translucent berries adding even more charm to this tropical cactus.
Thrives in bright, indirect light. For deeper red tones, provide a few hours of gentle morning or late-afternoon sun. Avoid harsh midday sunlight, which can scorch the stems.
Keep the soil lightly moist, allowing the top 23 cm to dry out between waterings. As an epiphytic cactus, Rhipsalis Red Coral prefers more humidity and moisture than desert cacti but dislikes waterlogged soil. In winter, water sparingly.
Temperature: Prefers 1828C. Protect from cold draughts and temperatures below 12C.
Humidity: Enjoys moderate to high humidity (5080%). Mist occasionally or place near other tropical plants to replicate its natural environment.
Use a free-draining epiphytic mix, such as cactus compost combined with orchid bark and perlite. This ensures good aeration and prevents soggy roots. Repot every 23 years in spring to refresh the substrate.
Feed every 46 weeks in spring and summer with a diluted cactus or epiphytic fertiliser. Avoid feeding during winter dormancy.
Trim back overly long or leggy stems to maintain a compact shape. Cuttings can be easily propagated by allowing the ends to callus, then planting in damp cactus mix or sphagnum moss.
A moderately fast-growing cactus that develops long, cascading stems up to 6080 cm in length. The red pigmentation intensifies under bright light and warm conditions.
Shrivelled stems: Underwatering or prolonged dryness.
Pale stems: Insufficient light.
Brown patches: Sunburn or overwatering.
Pests: Occasionally mealybugs or scale; wipe stems regularly to keep them clean.
Rhipsalis ramulosa is one of the few truly tropical cacti, growing as an epiphyte (tree-dwelling plant) rather than in the desert. The Red Coral form is prized for its colour-shifting foliage and sculptural appeal. Its easy to grow, pet-friendly, and a stunning alternative to more common hanging plants perfect for bright bathrooms, kitchens, or conservatories.
Quick Care Summary
Light: Bright, indirect; tolerates gentle sun
Water: Lightly moist; allow topsoil to dry slightly
Temperature: 1828C; protect below 12C
Humidity: Moderate to high (5080%)
Soil: Free-draining, airy epiphytic mix
Feed: Every 46 weeks in spring/summer
Growth: Trailing cactus, 6080 cm; flat green stems that flush coral-red in bright light
Pet-Friendly Note: Rhipsalis ramulosa Red Coral is non-toxic to cats, dogs, and humans a colourful and safe choice for pet-friendly homes.