Discover the unique and stunning Myrtillocactus geometrizans, also known as the Bilberry cactus or Blue Candle cactus. Learn about its varieties, care tips, propagation methods, and common issues in this comprehensive guide. Find out how to provide the right light, water, temperature, and soil conditions for this beautiful house plant. With proper care, Myrtillocactus geometrizans will thrive and bring elegance to your indoor space.


Are you looking for a unique and beautiful house plant to add to your collection? Look no further than Myrtillocactus geometrizans, also known as the Bilberry cactus or Blue Candle cactus. With its striking blue-green color and interesting growth pattern, this house plant is sure to be a conversation starter. In this article, we will explore the various types of Myrtillocactus geometrizans, their care requirements, propagation methods, and common issues. By the end of this article, you’ll be equipped with all the information you need to successfully care for this stunning house plant.

Myrtillocactus Geometrizans Varieties

Myrtillocactus geometrizans has several interesting varieties that you can choose from to add variety to your house plant collection. Here are a few popular varieties:

  1. Myrtillocactus geometrizans forma cristata: This variety is known for its unique crested growth pattern, which gives it the appearance of a dinosaur’s back. The undulating and contorted stems make it a truly eye-catching and unique addition to any plant collection.

  2. Myrtillocactus geometrizans ‘Fukurokuryuzinboku’: This variety is commonly referred to as the “Booby Cactus” due to its unique breast-like growths. It features round, flattened stems with small bumps that resemble breasts, giving it a distinct and intriguing appearance.

  3. Myrtillocactus geometrizans ‘Fukurokuryuzinboku Moon Cactus’: This variety is a grafted cactus that combines the unique growth pattern of Myrtillocactus geometrizans with the vibrant colors of a Moon Cactus. The result is a stunning plant that can add a pop of color to any indoor space.

Care Tips for Myrtillocactus Geometrizans

To ensure the health and growth of your Myrtillocactus geometrizans, it’s important to provide the right care. Here are the key care tips for this house plant:

  1. Light: Myrtillocactus geometrizans prefers bright light, especially when it is fully mature. Place it in a sunny spot, preferably with direct sunlight. Younger plants may require partial shade until they mature.

  2. Watering: As a desert cactus, Myrtillocactus geometrizans is adapted to dry conditions and prefers infrequent watering. During the summer, water the plant thoroughly and allow the soil to dry out completely between waterings. In the winter, reduce watering to once every few weeks, as the plant enters a period of dormancy.

  3. Temperature: Myrtillocactus geometrizans can tolerate a wide range of temperatures but prefers warm climates. It thrives in temperatures between 70°F and 95°F (21°C to 35°C). During the winter, protect the plant from freezing temperatures and keep it in a location with a minimum temperature above 55°F (13°C).

  4. Humidity: Myrtillocactus geometrizans prefers low humidity levels, around 30 percent. Avoid placing it in rooms with high humidity or near tropical plants. If necessary, use a dehumidifier to maintain the desired humidity level.

  5. Soil: Provide well-draining soil for Myrtillocactus geometrizans. A commercial cactus soil mix or a homemade mix consisting of equal parts of sand, peat moss, and perlite can be used. Ensure the soil has a pH ranging from 5 to 6.5.

  6. Fertilizer: Feed Myrtillocactus geometrizans with a balanced fertilizer once a month during the spring and summer. Use a fertilizer with a nutrient ratio of 5-10-5 or similar. Avoid over-fertilization, as the plant is adapted to grow in harsh conditions.

  7. Repotting: Repot Myrtillocactus geometrizans every two years or when it outgrows its current pot. Use a clay pot with good drainage to support its top-heavy growth. Ceramic or terracotta pots are recommended for improved soil aeration.

  8. Propagation: Myrtillocactus geometrizans can be propagated through stem cuttings or seeds. To propagate from stem cuttings, cut a four-inch (10cm) stem with side stems, let it dry for a few weeks until a callus forms, and then plant it in a well-draining substrate. Seeds can be harvested from ripe berries and planted in a similar substrate.

Common Issues and Solutions

While Myrtillocactus geometrizans is generally a resilient plant, it can face a few common issues. Here are some problems you may encounter and their solutions:

  1. Overwatering: Overwatering can lead to root rot and other issues. Ensure the soil is completely dry before watering again and avoid standing water in the pot. If you notice signs of overwatering, such as yellowing or wilting, reduce watering and consider repotting the plant in fresh, well-draining soil.

  2. Root rot: If your Myrtillocactus geometrizans develops root rot due to overwatering or poor drainage, trim off the affected roots and repot the plant in fresh soil. Adjust your watering routine to prevent future occurrences.

  3. Pests: Myrtillocactus geometrizans may occasionally attract pests such as scales and spider mites. To control these pests, use a mixture of alcohol and liquid soap sprayed onto the plant. Regularly inspect your plant for signs of infestation and treat it promptly.

  4. Space limitation: As Myrtillocactus geometrizans grows, it may outgrow its pot and require repotting. Make sure to provide enough space for its roots and stems to grow and support its top-heavy structure.


Myrtillocactus geometrizans, with its unique growth patterns and striking appearance, is a fantastic addition to any house plant collection. By following the care tips mentioned above, you can ensure its health and beauty for years to come. Remember to provide bright light, infrequent watering, well-draining soil, and occasional fertilization. Keep an eye out for common issues such as overwatering, root rot, and pests, and address them promptly to maintain the plant’s health. With proper care, Myrtillocactus geometrizans will thrive and bring a touch of elegance to your indoor space.


Please find below a list of references used in this article:

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[^10]: Reference: ‘Myrtillocactus Geometrizans | Blue Myrtle Cactus’:
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[^16]: Reference: ‘Caring For The Myrtillocactus Geometrizans Aka The Boobie Cactus!’:
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[^19]: Reference: ‘Crested Cactus Growth Tips: How to Care for Crested Cacti’: