Jungle Cacti Care Guide: Why They Differ from Their Desert Counterparts

Did you know that not all cacti are native to deserts?

Some cacti flourish in the lush, humid environments of tropical rainforests. These unique jungle cacti—such as Epiphyllum, Lepismium, Rhipsalis, and Schlumbergera require different care from their arid cousins, as they thrive in humidity and need more frequent watering. Unlike desert cacti, many jungle cacti are epiphytic or lithophytic, meaning they grow on tree trunks or rocks for support, rather than in the ground. While parasitic plants rely on other plants for nutrients, jungle cacti nourish from decomposing organic matter and moisture from rain and humidity.

Epiphyllum (Orchid Cactus)
Native to the rainforests of South and Central America, Epiphyllum species are best known for their stunning, fragrant blooms. There are around 19 species, with Epiphyllum anguliger being the most famous for its trailing, zig-zag leaves, which can grow up to 60 cm in length. These plants thrive as epiphytes, anchoring to tree bark or the forks of trees. In spring and summer, mature Epiphyllum produce large, showy flowers in shades of red, orange, white, pink, or purple. The Epiphyllum oxypetalum  known as the Queen of the Night, only blooms at night before wilting by morning.

Lepismium
Found across South America, Lepismium cacti are known for their distinctive flat, fleshy stems. One of the most recognisable species is Lepismium bolivianum, which produces tiny white flowers along its trailing stems in spring and summer. Other varieties, like Lepismium cruciforme, feature thicker stems with fine spikes and striking red tips. These plants bring colour and interest with their unique form and occasional pink blooms.

Rhipsalis
With around 40 species, Rhipsalis are native to tropical rainforests in South America, often growing high up in trees. Their cylindrical or flattened stems can stretch up to 20 feet in their natural habitat. Rhipsalis are often referred to as the 'mistletoe cactus' due to their small, pale seed pods, which resemble mistletoe berries. Popular varieties include Rhipsalis floccosa and Rhipsalis cassutha, with their long, spaghetti-like stems, as well as Rhipsalis ramulosa ‘Red Coral’, which has red-tipped stems, and Rhipsalis paradoxa, the Chain Cactus.

Schlumbergera
Favoured for their vibrant, colourful blooms, Schlumbergera species, including the famous Christmas Cactus, typically bloom in winter or spring. With around nine recognised species, they are beloved for their bright, tubular flowers, which can be red, pink, purple, or white. For more information on Schlumbergera, including tips on identification and care, check out our detailed care guide.

General Care for Jungle Cacti in the UK

Jungle cacti thrive in the humid conditions of tropical rainforests, so they need plenty of moisture and frequent misting. Unlike their desert counterparts, they should never dry out completely. Water them when the top inch of compost has dried out—usually every 7 to 10 days—but always check the soil with your finger to ensure it’s not still damp. To avoid waterlogging, always remove your cactus from its decorative pot to let excess water drain away.

In the colder months, compost dries more slowly, so reduce watering accordingly. Most jungle cacti prefer bright, indirect light, although some can tolerate short periods of direct sunlight. These plants grow naturally in the shade of larger trees, so avoid placing them in direct sunlight for prolonged periods. A South-facing window in summer, for example, can scorch their delicate stems.

During the growing season in spring and summer, feed your jungle cactus every two weeks with high-quality plant food, like Liquid Gold Leaf. Mature plants will typically bloom during these months. If your cactus needs repotting, wait until after blooming has finished. These plants generally require repotting every 2 to 3 years, and due to their epiphytic nature, they should be potted in a free-draining mix with 30% Base Mix, 50% Bark, and 20% Zeolite.

Jungle cacti also need a resting period after blooming. To encourage future blooms, reduce watering and place your cactus in a cooler, shadier spot for a couple of months.

Troubleshooting Jungle Cactus Care

Overwatering
Jungle cacti are susceptible to overwatering. If overwatered, their stems will yellow, turn reddish-brown, and become mushy. To prevent this, always check the soil by sticking your finger into the compost. If it's still moist, wait a few extra days before watering again. If you're unsure, a Soil Moisture Meter can help you determine the best time to water.

Underwatering
Jungle cacti store water in their stems, so if they're not watered enough, you'll notice the stems shrivelling. If left too dry for too long, the stems will become crispy and shrivel up.

Too Much Sun
While jungle cacti can tolerate some direct sunlight in the morning or evening, avoid placing them in direct midday sun, especially in a South-facing window in summer. Too much sun can scorch their stems, causing brown patches and wilting.

Not Flowering
To encourage flowering, give your cactus a resting period after blooms have faded. Reduce watering and move your plant to a cooler, darker location for a couple of months. This rest period is essential for promoting future flowers.

By understanding the unique needs of jungle cacti and providing the right care, you can enjoy their stunning blooms and vibrant greenery for years to come. Happy gardening! 🌱