Gymnocalycium baldianum aka Spider Cactus

Taxonomy

Gymnocalycium baldianum, also known as the spider-cactus or dwarf chin cactus, is a species of flowering plant in the cactus family Cactaceae. It is native to the Catamarca Province in Argentina and thrives in the temperate climate of the region. This small cactus grows near rocky mountains and in grassy areas, either alone or alongside other plants. However, it is currently facing threats from commercial harvesting and forest fires, leading to its inclusion on the Red List of the International Union for Conservation of Nature. The Gymnocalycium baldianum can be easily identified by its flattened stem, which has a gray-green hue. It reaches a height of up to 4 inches (10 cm) and a diameter of up to 5.2 inches (13 cm). The stem features 9-11 pronounced ribs that are divided into tubercles, and it is adorned with bristle-like radial spines in a grayish shade. During the spring and summer months, this cactus produces beautiful funnel-shaped flowers that are deep pink to crimson in color and measure around 4 cm across. Following the flowering period, the Gymnocalycium baldianum develops dark green fruits in small quantities. Overall, this unique cactus species showcases its beauty and resilience in its natural habitat while facing ongoing conservation challenges.

Common names

Spider Cactus, Thread Cactus

How to care for Spider Cactus

Difficulty

With its straightforward care requirements, Spider Cactus is a hassle-free plant that anyone can enjoy.

Water

Spider Cactus does best in dry soil and should only be watered sparingly.

Soil

The Spider Cactus is very susceptible to soil that is too wet, so it's essential to choose a potting soil that drains well and does not retain excessive moisture. A soil mix that includes plenty of perlite or vermiculite for drainage and some organic matter for nutrition is ideal. You can easily create this type of soil by adding a few handfuls of perlite to regular cactus soil from the store.

Lighting

Spider Cactus requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Thread Cactus will be sure to bring you many years of beauty and enjoyment.

Toxicity

No verified data on the toxicity of this plant exists within Ploi's records. Should you, someone in your family, or your pet ingest plant material with an unknown toxicity level, it is recommended to seek medical advice.

Humidity

Spider Cactus prefers dry environments, but by misting the plant or providing extra humidity, water will linger on the leaves and create an ideal environment for fungi that could be harmful.

Fertilizer

The Spider Cactus is known for its slow growth and doesn't require fertilizing beyond its potting soil. Replacing the soil in its pot once a year should offer it sufficient nutrition. It's essential to remember that plants get their energy from the sun, not from fertilizers.

Region of origin

Spider Cactus’s native range is South America.


More info:
Wikipedia