Shark Tooth Cactus (Epiphyllum anguliger)

The Shark Tooth Cactus, botanically known as Epiphyllum anguliger, is a distinctive indoor cactus admired for its deeply serrated, zigzag stems that resemble sharp teeth. Commonly called a fishbone cactus, this plant offers a dramatic, sculptural look that stands out from traditional upright cacti. Its trailing growth habit makes it especially well suited for shelves, hanging planters, and elevated surfaces where its unique form can be fully appreciated.

What makes the shark tooth cactus especially appealing is its combination of bold appearance and adaptable care needs. Unlike desert cacti, this indoor cactus plant originates from tropical forest environments, which means it thrives in bright, indirect light and appreciates more consistent moisture. Its flattened stems store some water, but it does not tolerate long periods of drought as well as arid-climate cacti.

This fishbone cactus is a great choice for plant owners who want something visually striking without excessive maintenance. Epiphyllum anguliger grows steadily under stable conditions and develops longer, cascading stems over time. With proper placement and care, it can become a focal point in indoor plant collections.

Care for the shark tooth cactus is straightforward when its tropical origins are considered. It prefers bright, indirect light and should be protected from harsh direct sun. Watering should be done once the top portion of the soil has dried, keeping the mix lightly moist but never waterlogged. A well-draining, airy potting mix supports healthy roots and prevents moisture-related issues. Average indoor humidity is sufficient, though slightly higher humidity can encourage stronger growth.

Pet safety is an added benefit of this plant. The shark tooth cactus is considered pet-friendly, with no known toxicity to cats or dogs. This makes it a reassuring option for households that want a statement plant without compromising pet safety.

During shipping and acclimation, some mild stem drooping or cosmetic stress may occur, which is common for epiphytic plants adjusting to new environments. Placing the plant in consistent light and allowing a short adjustment period before watering helps it settle in smoothly.

If you’re looking for a visually bold, pet-safe cactus with a trailing habit and tropical character, the Shark Tooth Cactus is a unique and rewarding addition to indoor spaces.

Sizing Description:

Medium - 6" / 15cm diameter hanging basket