Discocactus araneispinus
Common Name: Spider Spine Discocactus

Discocactus araneispinus is a rare and fascinating species in the Discocactus genus, prized for its flattened, disc-shaped body and fine, web-like spination that gives it a soft, ethereal appearance. Native to Brazil, this species stays compact and globular, developing a cephalium (a woolly flowering structure) at maturity, from which fragrant white flowers bloom—usually at night.

This cactus is not just a visual standout but a true collector’s gem due to its slow growth, sensitivity to overwatering, and highly specific care requirements. When grown well, it rewards patience with stunning form and a sweetly scented floral display.

☀ Light Requirements
Prefers bright, indirect light or gentle morning sun. Avoid harsh afternoon rays, which can cause scorching. Ideal for filtered greenhouse light or bright indoor setups.

💧 Watering Needs
Water sparingly, only when the soil is fully dry. Sensitive to overwatering—especially in cooler weather. Ensure excellent drainage and reduce watering significantly in winter.

🌡 Temperature Tolerance
Best kept above 50°F. Very sensitive to cold and excess moisture. For cold zones or winter shipping, always include a [Heat Pack].

✨ Special Features
• Unique Webbed Spines – Fine white spines resemble a spider’s web
• Fragrant Night Blooms – White flowers from the cephalium emit a sweet scent
• Highly Collectible – A must-have for rare cactus lovers and advanced growers

Other Common Names:
Spider Spine Discocactus, Araneispinus Discocactus

This cactus will ship bare root and will be ready to place directly in a well draining soil mix like our Custom Cactus Mix.

Photos in the listings unless otherwise specified are representative of the plant that will be sent to you.
However, Plants grow differently and each plant may vary slightly in shape, size, growth pattern, etc.
Of course, if you receive a plant that you are dissatisfied with please reach out to us. We want to make it right!

If temperatures near you are below 45℉ we highly recommend adding a Heat Pack to your order.
If temperatures where you live will be much lower than 20℉ even heat packs may not work. You may consider waiting until things warm up a bit. We know you love your plants just like we do and we wouldn't want any of them to freeze.