Crassula Spiralis (Crassula ‘Black Curl’)

Crassula Spiralis Image

Discovering the Unique Charm of Crassula Spiralis

Crassula Spiralis, originating from South Africa, is a small, slow-growing succulent that has gained popularity for its mesmerizing appearance. Its most distinctive feature is the tightly coiled, spiral-shaped leaves that give rise to its common name, the ‘Black Curl.’ With their rich green coloration, the leaves have a unique velvety texture and often exhibit deep maroon or blackish edges under bright light conditions, enhancing their allure.

As Crassula Spiralis matures, it forms a dense, compact rosette shape, with the spiraling leaves tightly packed together. This growth habit and the contrasting dark edges create a visually captivating display that will make a statement in any succulent collection.

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Caring for Crassula Spiralis: Simplicity at Its Finest

Crassula Spiralis, with its easy care requirements, is a perfect succulent for both seasoned cultivators and novices alike. Here are some essential care tips to ensure your ‘Black Curl’ succulent thrives:

  • Light: Provide your Crassula Spiralis with bright, indirect sunlight. It appreciates ample light but should be protected from intense, direct sunlight that can scorch its leaves. Place it near a window with filtered light or where it receives bright light for a few hours daily.
  • Temperature: Crassula Spiralis prefers moderate temperatures between 60-75°F (15-24°C). Please protect it from extreme heat or cold, as prolonged exposure to extreme temperatures can impact its overall health and growth.
  • Watering: Crassula Spiralis has low water requirements, like most succulents. Ensure that the soil is thoroughly dry before watering again. When watering, ensure you do so thoroughly, allowing excess water to drain away. To avoid issues like root rot, it is crucial to practice moderation when watering.
  • Soil: Use a well-draining succulent or cactus soil mix to drain your Crassula Spiralis properly. Combining regular potting soil with perlite or coarse sand can also be suitable.
  • Fertilizer: Although unnecessary, you can apply a diluted succulent fertilizer during the active growing season (spring and summer) to support healthy growth. Adhere to the instructions provided on the fertilizer package regarding the appropriate dilution and frequency.

DO YOU KNOW? Caring (propagating, pruning/trimming, beheading, watering, …) is a set of skills that is widely applicable to succulents. Read the in-depth guide here >>

Richard Miller – Succulent City

Propagation: Expanding Your ‘Black Curl’ Succulent Family

For propagating Crassula Spiralis, stem or leaf cuttings can be utilized. Before planting them in well-draining soil, it is advisable to allow the cuttings to dry and develop a callus for a few days. Place the cuttings in a bright location with indirect sunlight and lightly water until roots develop. New plants will grow from these cuttings with time and care, expanding your ‘Black Curl’ succulent family.

Potential Challenges and Pests

While Crassula Spiralis is typically a hardy plant, excessive watering can result in root rot and various complications. Additionally, watch for common succulent pests such as mealybugs or spider mites. Regularly inspect your ‘Black Curl’ succulent and take appropriate action if you notice any signs of pests.


Crassula Spiralis, with its captivating spiraling growth and striking dark foliage, is a standout succulent that adds a touch of intrigue and beauty to any plant collection. With its specific care requirements and visually captivating appearance, this succulent is a fantastic choice for seasoned succulent enthusiasts and beginners.

More Crassula genus plant posts:

Succulent City chief editor


Succulent City

Hey everyone! Welcome to Succulent City! We are all about succulents, cacti, and a bit about air plants. Ten years back, in 2013, we began the journey with succulents. It started as a simple hobby, crafting and selling charming succulent-themed pins and decorations. But as time passed, our fascination with these remarkable plants grew, and we gained extensive knowledge about them. Therefore, Succulent City is the blog as you see it is now. Enjoy your visit and happly planting!

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Posted in Succulents