Picture via gymnocalycium.wordpress.com
Basic Info
Gymnocalycium Denudatum is commonly known as the ‘Spider Cactus’. As the plant matures expect it to reach up to 10 cm (4″) tall and around 15 cm (6″) in diameter. The plants main feature is the green stem that grows globulary whilst producing brown spines. When producing flowers expect them to be white appearing in spring and summer.
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Trichocereeae
Genus: Gymnocalycium
Care and Propagation Information
Watering
Gymnocalycium Denudatum ‘Spider Cactus’ can be quite beautiful when it is well-taken care of. This succulent type needs typical watering as the other succulents. The watering method is very important to keep your Spider Cactus healthy. It should not sit on the water, and an excess amount of water should be avoided. The best way of watering is soak and dry method this succulent. Yet, the succulent should be controlled to avoid overwatering.
General Care for Gymnocalycium Denudatum ‘Spider Cactus’
This succulent type is a unique one that blooms in the spring. When it blooms, you will enjoy white flowers. It is a nice addition to your collection of plants especially if you have it displayed in a beautiful pot.
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Quick Facts:
- Prefers full sun
- Can be grown outdoor
- Grows 10 cm (4″) tall
- Grows up to 15 cm (6″) wide
- Can die easily if overwatered see: How to Water Succulent Plants
- Does not handle cold well
- Prefers Zone 9b-11b -3.9°C (25°F)
- Best propagated by seeds
- Flowers are white
Where to Plant
Gymnocalycium Denudatum ‘Spider Cactus’ succulents need strong light. When planting this succulent type in a garden, make sure it gets sunlight. Full to partial sun is the best for its growth. It is better to grow outdoor rather than indoor.
This type of succulent prefers a warm climate. It can survive at zone 9b-11b which is around -3.9°C (25°F). If you live in a cold area, it is better to plant Spider Cactus in an indoor environment. As long as it gets enough sunlight, the plant will grow happily.
When selecting what pot to use be sure that you understand the difference between the material used (See our guide on how to pick the best plant pot).
How to Propagate Gymnocalycium Denudatum ‘Spider Cactus’
Spider Cactus can be propagated by seeds. This succulent type does not require repotting often. Of course, the first-time repotting is essential when it is bought from the store. You can learn all about How To Repot Succulents in our guide.
Like all the other succulent types, a well-drained soil mixture is essential. If you want to know about well-drained soil mixtures, check How to Prepare Well-drained Soil for Succulent Plants.
How to Propagate Gymnocalycium Denudatum ‘Spider Cactus’ Using Seeds
This succulent type is a slow grower so even if it can be propagated by its seeds, this method is not recommended. To propagate from the seeds, plant the seeds in a well-draining soil mixture. This method can be used outdoors. In cooler areas, indoor propagating is recommended.
Origin and Habitat
Gymnocalycium Denudatum ‘Spider Cactus’ is native to Uruguay, Paraguay and Brazil.
