How to Grow and Care for Selenicereus anthonyanus: The Beautiful Fishbone Cactus

Selenicereus anthonyanus, commonly known as the Fishbone Cactus, is a stunning and unique plant native to the tropical regions of Central America. With its distinctive zig-zag stems and striking white flowers that bloom at night, it’s no wonder that this cactus is a favorite among houseplant enthusiasts. In this guide, we’ll explore how to grow and care for your Fishbone Cactus to ensure it thrives in your home.

Understanding Selenicereus anthonyanus

Before diving into care tips, let’s understand what makes the Fishbone Cactus special. Unlike traditional cacti, Selenicereus anthonyanus is a climbing cactus, meaning it grows upwards and can cascade beautifully when placed in hanging pots. Its stems can grow up to 3 feet long, making it an eye-catching addition to any indoor garden.

Optimal Growing Conditions

Light Requirements

Selenicereus anthonyanus thrives in bright, indirect light. While it can tolerate some direct sunlight, too much can scorch its delicate leaves. Place your cactus near a window where it can receive filtered light for the best results.

Soil Type

A well-draining soil mix is crucial for the health of your Fishbone Cactus. A cactus or succulent mix is ideal, but you can also create your own by mixing potting soil with sand and perlite. This will ensure that excess moisture drains away, preventing root rot.

Temperature and Humidity

This cactus prefers warm temperatures between 70°F to 90°F (21°C to 32°C). It’s not frost-tolerant, so make sure to bring it indoors if you live in a cooler climate. Selenicereus anthonyanus also enjoys higher humidity levels, so consider placing it in a bathroom or kitchen, or using a humidity tray.

Watering Your Fishbone Cactus

Watering is one of the most critical aspects of caring for Selenicereus anthonyanus. Here are some tips to help you get it right:

1. Frequency: Water your cactus when the top inch of soil feels dry. Typically, this means watering every 2-3 weeks during the growing season (spring and summer) and less frequently in the fall and winter.
2. Method: Water deeply, allowing water to drain out of the bottom of the pot. Never let your cactus sit in standing water, as this can lead to root rot.

Fertilizing

Feed your Fishbone Cactus with a balanced, water-soluble fertilizer during the growing season (April to September). Dilute the fertilizer to half strength and apply every 4-6 weeks. Avoid fertilizing in the fall and winter when the plant is dormant.

Pruning and Repotting

Pruning

Regular pruning helps maintain the shape of your Fishbone Cactus and encourages healthy growth. Use clean, sharp scissors to trim back any leggy stems or to control the plant’s size. It’s best to prune in the spring.

Repotting

Repot your Selenicereus anthonyanus every 2-3 years or when you notice that it has outgrown its pot. Choose a pot that is only slightly larger than the current one to prevent overwatering issues.

Common Pests and Diseases

While the Fishbone Cactus is relatively pest-resistant, it can still be affected by common houseplant pests like mealybugs and spider mites. Regularly inspect your plant and treat any infestations promptly with insecticidal soap or neem oil. Ensure proper airflow around your cactus to prevent fungal issues.

Propagating Selenicereus anthonyanus

Propagating your Fishbone Cactus is a rewarding process. You can do this through stem cuttings:

1. Select a healthy stem: Choose a healthy stem and cut a few inches off using clean scissors.
2. Let it callous: Allow the cutting to dry and callous for a few days.
3. Plant the cutting: Place the calloused end into well-draining soil and water lightly.
4. Provide care: Keep the cutting in bright, indirect light and water sparingly until it establishes roots.

Conclusion

Caring for Selenicereus anthonyanus can be a delightful addition to your indoor garden. By providing the right light, soil, and watering conditions, you’ll enjoy the unique beauty of this fishbone cactus for years to come. With a little attention and care, your Fishbone Cactus will thrive and possibly even reward you with its spectacular night-blooming flowers. Happy gardening!