Tephrocactus Articulatus v. Inermis

Tephrocactus articulatus var. inermis
Common Name: Pine Cone Cactus

Tephrocactus articulatus var. inermis, often referred to as the Pine Cone Cactus, is a fascinating, spineless variety of Tephrocactus that resembles stacked pine cones or dragon eggs. Native to Argentina, this unique cactus features plump, oval segments with a silvery-blue hue and bumpy texture—growing in a quirky, modular form that’s a true conversation piece.

Unlike its spiny relatives, this variety lacks prominent spines, making it both beginner-friendly and ideal for indoor collections. Over time, it can form a small clump, and with the right care, may produce delicate white flowers in spring or early summer.

☀ Light Requirements
Prefers bright, indirect light to full sun. Outdoors, offer morning sun and afternoon shade. Indoors, place near a sunny window or under strong grow lights to maintain compact shape.

💧 Watering Needs
Water only when soil is fully dry. This species is highly drought-tolerant and sensitive to overwatering—especially in cooler months. Use a well-draining cactus mix and reduce watering in winter.

🌡 Temperature Tolerance
Hardy to around 25–30°F in dry conditions. Protect from prolonged cold or excess moisture. For cold zones or winter shipping, we recommend adding a [Heat Pack].

✨ Special Features
• Spineless & Sculptural – Unique, bumpy joints resemble pine cones or eggs
• Modular Growth – Segments detach easily and can be rooted for propagation
• Collector Favorite – A must-have for lovers of rare and oddball cacti

Other Common Names:
Pine Cone Cactus, Inermis Tephrocactus, Tephrocactus articulatus spineless form

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.