2 inch Gymnocalycium horstii
2 inch Gymnocalycium horstii
2 inch Gymnocalycium horstii
2 inch Gymnocalycium horstii
2 inch Gymnocalycium horstii

Gymnocalycium Horstii Spider Cactus

(This plant comes in a 2 inch pot. All of our plants are grown under the same conditions, although not all the plants are the same. You will receive a similar plant in size and shape to the ones in the pictures. Our plants are hand-picked and carefully selected to bring you the best quality possible. Please allow us up to 3 business days to process your order. If you wish to receive your order on a specific date, or have special instructions, please add a note at the checkout. The plant is shipped in its pot to prevent any damage to the roots).

Gymnocalycium horstii is commonly known as ‘Spider cactus’ and belongs to the Cactaceae family. When the plant matures, it reaches a height of 10" inches. The main attraction of the Spider cactus is its globose shape which grows in brown color. A native of South America, this plant enters dormancy in winters.

Growth Rate

The growth rate of Gymnocalycium horstii is slow.


This unique cactus blooms from Mid-spring to the summer season in attractive White/pink/pale purple-colored flowers. 

Water and Feeding/Fertilizer

The watering method of the Spider cactus is not typical. It should be watered regularly but avoid overwatering. The best way is to use the dry and soak method.


This cactus needs well-drained soil.


​The hardiness of Gymnocalycium horstii is 10a-11b, with a frost tolerance of -4°C (24.8°F).


Gymnocalycium horstii needs light shade to full sun to grow. It is better to plant this variety of cacti outside rather than indoors. As it needs a warm climate, proper sunlight will keep it healthy.


Spider cactus can be propagated through seeds. This plant does not need repotting. 

If you are planning to grow Gymnocalycium horstii in your garden, you can choose this plant without thinking twice as it will make your garden area beautiful.

Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz

Blooming Season Mid spring-summer
Common Name Spider cactus
Dormancy Winter
Family Cactaceae
Flower White/pink/pale purple
Frost Tolerance -4°c
Growth Rate Slow
Hardiness Zone 10a-11b
Height 10"
Origin South america
Pot Size 2 inch
Scientific Name 2 inch Gymnocalycium horstii
Shape Globose
Sun Exposure Light shade to full sun
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Roger B.
United States United States

Gymnocalycium horstii

Arrived in excellent time and condition. Another great addition.


Although it grows a bit slowly, this cactus is a great addition to my plant collection.

2 inch Gymnocalycium horstii

2 reviews

SKU: 1363

Regular price $ 6.49 Save Liquid error (product-template line 189): Computation results in '-Infinity'%
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Colder regions warning: If you are expecting temperatures below 40 degrees within the next five days after placing your order, we highly recommend adding a heat pack to your order. We are now offering 72-hour heat packs by request. If your order is $50.00 or more, you will get a heat pack free of charge. To prevent plants from freezing while in transit, orders placed for areas with extreme severe freezing temperatures will be held for shipment until it is safe to ship. Care instructions are included in every package you order. We ship via USPS Priority Mail, and we calculate the shipping cost based on the weight and volume of your purchase. Depending on your location, we will ship the plants on a certain day to avoid transit time during weekends or holidays. If you have any questions or comments, please feel free to contact us at any time.