Blue Torch Cactus

🌵 Pilosocereus azureus (Blue Torch Cactus)

Common Names:
Blue Torch Cactus, Blue Columnar Cactus, Woolly Blue Spires Family:
Cactaceae

📏 Description

Growth Habit:
A tall, slender, columnar cactus that can branch from the base, forming clumps over time.Height:
In cultivation, it typically reaches 2–3 meters (6–10 feet), but in its native habitat, it can grow taller.Color:
Notable for its vibrant blue to blue-green stems, which become more pronounced with age and sun exposure.Ribs and Areoles:
Features 10–20 well-defined ribs with areoles bearing golden to yellowish spines and fine white hairs.rhs.org.uk

🌸 Flowers

Blooming Season:
Typically blooms during summer.Flower Characteristics:
Produces white, funnel-shaped flowers that open at night, often with a hint of red at the tips.rhs.org.uk

🌱 Cultivation and Care

Light:
Thrives in full sun; ensure it receives at least 6 hours of direct sunlight daily.Soil:
Prefers well-draining cactus or succulent soil.Watering:
Water moderately during the growing season (spring and summer), allowing the soil to dry out between waterings. Reduce watering in winter.Temperature:
Prefers warm temperatures and is not frost-tolerant. Protect from temperatures below -6°C (20°F).Propagation:
Can be propagated from seeds or stem cuttings. Allow cuttings to callous before planting.

🌍 Native Habitat

Pilosocereus azureus is native to Brazil, where it grows in arid and semi-arid regions.succulentalley.com

✅ Summary

The Blue Torch Cactus (Pilosocereus azureus) is a visually stunning, low-maintenance cactus that adds a splash of color to any collection. Its striking blue stems and golden spines make it a favorite among cactus enthusiasts and collectors.