Fishbone Cactus Care: A Low-Fuss Beauty With Tropical Flair

The Fishbone Cactus (Disocactus anguliger), also known as the Zigzag Cactus or Ric Rac Cactus, is a bold and unusual succulent prized for its deeply lobed stems and carefree nature. Native to the rainforests of Mexico, this epiphytic cactus grows not in desert sand but clinging to trees — making it very different from the dry-climate cacti many people expect.

This guide breaks down exactly how to care for a Fishbone Cactus, from light and watering to potting and long-term health.

What Kind of Plant Is Fishbone Cactus?

Despite its name, Fishbone Cactus is not a desert cactus.

It’s an epiphytic succulent that thrives in warm, humid forests and absorbs water and nutrients from rain and air.

It belongs to the Cactaceae family and is closely related to the orchid cactus.

Its stems grow in a zigzag pattern that resembles fishbones — hence the name.

Over time, they can trail impressively, making it a great plant for hanging baskets or high shelves.

 

How Much Light Does Fishbone Cactus Need?

This cactus is adapted to filtered jungle light and dislikes harsh sun.

• Indoors: Place near a bright east- or west-facing window.

• Outdoors: Give morning sun and afternoon shade; avoid full midday exposure.

Too much direct sun can scorch the stems, while too little light may cause leggy, pale growth.

A happy Fishbone Cactus will have vivid green stems with firm texture.

How Often Should You Water?

Unlike desert cacti, the Fishbone Cactus enjoys moderate watering and doesn’t like to fully dry out for long.

Follow this reliable schedule:

• Water when the top 1–2 inches of soil feel dry.

• During spring and summer, this is usually once every 7–10 days.

• In fall and winter, reduce to every 2–3 weeks.

Water thoroughly and let excess drain out. Never let the pot sit in water, as this will quickly lead to root rot.

What Soil Is Best for Fishbone Cactus?

This cactus needs soil that drains well but retains some moisture — not bone-dry cactus mix.

Use this ideal blend:

• 50% cactus/succulent mix

• 25% orchid bark or coco coir

• 25% perlite or pumice

This creates an aerated, moisture-balanced medium that mimics its natural epiphytic environment.

Temperature and Humidity Needs

Fishbone Cactus enjoys warm, moist conditions but adapts well to indoor environments.

• Ideal temperature: 65–80°F (18–27°C)

• Minimum: Do not expose to temps below 50°F (10°C)

• Humidity: Prefers 40–60% humidity, but tolerates normal room levels

If your home is very dry, occasional misting or a nearby pebble tray can help — especially during winter heating.

How and When To Fertilize

Fishbone Cactus benefits from regular but light feeding during the growing season.

Here’s the best routine:

• Use a balanced 10-10-10 fertilizer, like this one, at ¼ strength

• Apply once every 4 weeks during spring and summer

• Skip fertilizing during fall and winter

Avoid overfeeding — excess fertilizer leads to soft, leggy growth that is more prone to pests.

 

Common Issues and Solutions

While generally resilient, the Fishbone Cactus can show signs of stress if its environment isn’t quite right.

Watch out for:

• Shriveled stems → Underwatering or too much sun

• Soft or mushy sections → Overwatering or poor drainage

• Pale color and leggy growth → Insufficient light

• Brown tips → Low humidity or inconsistent watering

Correcting the care conditions usually results in quick recovery.

Pruning and Shaping

Fishbone Cactus can be pruned to shape or encourage bushier growth.

• Use clean scissors to trim leggy or damaged stems.

• Pruning in early spring stimulates new side shoots.

• You can root healthy cuttings for propagation (more below).

This plant tolerates pruning well and rebounds quickly.

Repotting Tips

Although it doesn’t mind being root-bound, Fishbone Cactus should be repotted every 2–3 years.

Here’s how to do it right:

• Repot in spring, before or at the start of active growth

• Choose a pot only 1–2 inches wider than the current one

• Gently loosen old soil, inspect roots, and trim away any rot

After repotting, wait 5–7 days before watering to allow roots to heal.

Is Fishbone Cactus Pet Safe?

⚠️ Pet Safety Note: Fishbone Cactus is non-toxic to cats and dogs, making it a great choice for pet-friendly homes. However, it’s best to keep trailing stems out of reach to avoid nibbling or tugging.

Does It Flower?

Yes — though it can take time. Under the right conditions, mature Fishbone Cactus can produce large, fragrant white blooms, often in late summer or early fall.

Flowers last only a day or two but are stunning when they appear.

To encourage blooming:

• Provide cool nighttime temperatures (55–60°F) in late summer

• Slightly reduce watering for 2–3 weeks before buds appear

Blooming is most likely when the plant is slightly root-bound and mature (3+ years old).

Final Word

Fishbone Cactus is a stylish, easy-care plant that brings both movement and texture to your space.

It’s ideal for beginners and collectors alike — thriving in bright rooms with minimal watering.

With the right soil, consistent care, and occasional pruning, your Fishbone Cactus will grow long, rippling stems that are both sculptural and striking.

🧭 Want to make more of this beauty? The Fishbone Cactus Propagation Guide walks you through stem cuttings and rooting tips in detail.