Myrtillocactus geometrizans
Common Name: Blue Candle Cactus

Myrtillocactus geometrizans, commonly known as the Blue Candle, is a fast-growing, columnar cactus prized for its powdery blue skin and elegant, branching growth. Native to central and northern Mexico, this striking species can form a sculptural, tree-like shape over time, making it a favorite for landscape accents, large containers, or as hardy grafting stock for rare cactus forms.

The blue coloration intensifies with age and sun exposure, and mature plants may produce clusters of small greenish flowers followed by edible, dark purple fruits resembling tiny blueberries—hence the genus name Myrtillocactus (“myrtle cactus”).

☀ Light Requirements
Thrives in full sun. Outdoors, give it strong, direct light for best color and form. Indoors, place near a very bright window or under supplemental grow lights to encourage upward growth.

💧 Watering Needs
Water deeply when soil is fully dry. This species is drought-tolerant and prefers lean, well-draining soil. Reduce watering in winter or during periods of dormancy.

🌡 Temperature Tolerance
Hardy to about 25–30°F in dry conditions. Protect from frost and freezing wet soil. For cold climates or winter shipping, consider adding a [Heat Pack].

✨ Special Features
• Blue Skin – Powdery glaucous coating gives the plant its iconic blue hue
• Branching Habit – Develops into a sculptural, multi-armed form with age
• Fast-Growing & Versatile – Excellent as a statement plant or grafting stock

Other Common Names:
Blue Myrtle Cactus, Blue Candle, Bilberry Cactus

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.