Fishbone Cactus Plant Guide: How to Grow Fishbone Cactus

Fishbone cactus (Disocactus anguliger or Epiphyllum anguliger) is an epiphytic species in the Cactaceae family. Its other common names include zig zag cactus, ric rac cactus, or orchid cactus. Fishbone cacti have long, deep-lobed floppy green stems (often mistaken for leaves) that feature rounded teeth on either side. This humidity-loving succulent is endemic to the tropical rainforests of Mexico. The plant sprouts large, white nocturnal flowers that only bloom for one night and grows edible green fruit during its growing season.

Selenicereus anthonyanus (formerly Cryptocereus anthonyanus) is another type of cactus species referred to as the fishbone cactus. It is nearly indistinguishable from the Disocactus before it flowers, though these genera produce larger, dark pink to white flowers with longer stems and wider-spaced serrations.

Plant fishbone cactus indoors at any time of the year. Growing this genus as an indoor plant is safer than planting it outside because it is very particular about its growing conditions. The plant only thrives in USDA Hardiness Zones 10–11 and cannot tolerate extreme cold or heat.

While growing the plant indoors is easier, getting your cactus to bloom will be more difficult. (Though the flowers only last for a maximum of two days.)

Fishbone cacti are low-maintenance and non-toxic to people and pets, making them great houseplants. Propagation through cuttings is the quickest and most reliable way to grow your fishbone succulents. Here is a quick overview of how to grow fishbone cactus:

1. 1. Choose a growing spot. The biggest difference between the two fishbone cacti is that Selenicereus cacti love sunlight, while Disocactus species prefer more shade. Keep the lighting needs in mind when deciding where to place your cactus, especially if you’re considering moving it outside during the summer. Both types will thrive inside with bright, indirect light or the right acclimation and tolerate an east or south-facing window. Consider placing your fishbone cactus in a location like a sunny bathroom.
2. 2. Obtain a cutting. Find a mature fishbone cactus plant, and use a sharp knife to snip a stem cutting from it. Take a section from the mother plant, about five to six inches long. Set your cuttings on a paper towel in a sunny windowsill until they callus over.
3. 3. Prepare a container. Whether choosing a pot or hanging basket, your medium should contain a well-draining, low-soil mixture (like peat moss, which you can mix with perlite for extra aeration). Press the callused end into the mixture until it stands.
4. 4. Water the plant. Keep the soil evenly moist as your plant establishes itself, and your cactus should form roots within a couple of weeks.

Fishbone cacti are easy to take care of and look great in containers or hanging pots. Here are some simple fishbone cactus care tips to consider:

1. 1. Mist regularly: Unlike desert cacti, fishbone cacti prefer moist and humid environments. Add humidity to your plant by misting it regularly or using a humidifier/indoor greenhouse to help mimic the conditions of their natural habitat.
2. 2. Monitor sunlight: If your fishbone cactus stems start to turn reddish-brown or yellow, it means they are getting too much direct sunlight. Move your cactus pot to a shadier location. Fishbone cactus can occasionally tolerate more direct sun, but they will do best in partial shade or dappled sunlight.
3. 3. Fertilize as necessary: Fishbone cacti are quick growers that require feeding, so use a water-soluble or orchid fertilizer to supplement your greens. Make sure the soil around your plant is damp before applying fertilizer.
4. 4. Water regularly: Fishbone cactus needs frequent waterings to ensure consistently moist soil. Water your cactus when the top inch of the soil dries out. Keep in mind that overwatering will lead to root rot.
5. 5. Watch for pests and diseases: Fishbone succulents are susceptible to scale and mealybugs. Use a tweezer or hose spray to rinse any pests from your stems, or apply an organic insecticide if the problem persists.

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