Buy Pilocereus cactus (Cereus Azureus)

Pilocereus Cactus, often sold as Cereus Azureus, is a striking columnar cactus admired for its tall, upright growth and beautiful blue-green stems. Its sculptural shape and powdery blue colouring make it a standout feature in cactus collections, contemporary gardens, and large decorative pots.

Native to warm, dry regions of South America, this drought-tolerant cactus develops thick ribbed stems lined with evenly spaced areoles and short spines. As it matures, it may branch from the base or upper stems, creating an impressive multi-column display. Mature outdoor plants can also produce large white, night-blooming flowers followed by ornamental fruit under ideal growing conditions.

Pilocereus is highly valued by collectors for its architectural form, vibrant colouring, and exceptional tolerance to heat and dry conditions. Whether displayed as a feature plant in a container or planted in a xeriscape or desert-style garden, it provides year-round structure with very little maintenance.

Why You'll Love It

• Attractive blue-green columnar stems with a powdery appearance
• Strong upright architectural growth
• Excellent feature cactus for modern landscapes and large pots
• Extremely drought tolerant once established
• Easy-care and suitable for beginner cactus growers
• Ideal for cactus collections, rock gardens, and xeriscape planting
• May produce large white flowers on mature plants grown outdoors

Plant Details

Botanical Name: Pilocereus (commonly sold as Cereus Azureus)

Common Name: Pilocereus Cactus, Blue Columnar Cactus

Plant Type: Columnar cactus

Family: Cactaceae

Pot Size: 130mm

Growth Habit: Upright, column-forming cactus

Growth Rate: Slow to moderate

Mature Height: Can reach several metres outdoors under suitable conditions

Foliage: Thick blue-green ribbed stems with small clusters of spines

Care Guide

Light

Thrives in full sun or very bright light. Plenty of sunlight helps maintain its attractive blue colouring and compact growth.

Watering

Water deeply only after the soil has dried completely. Reduce watering during winter.

Soil

Use a fast-draining cactus or succulent potting mix with excellent drainage.

Temperature

Prefers warm, dry conditions. Protect from frost and prolonged cold weather.

Feeding

Apply a cactus fertiliser during spring and summer to encourage healthy growth.

Perfect For

• Cactus collections
• Modern gardens
• Xeriscape landscapes
• Desert gardens
• Large decorative pots
• Courtyards and patios
• Indoor spaces with bright light
• Architectural landscape designs

Good to Know

Pilocereus Cactus is prized for its distinctive blue stems, upright growth, and long lifespan. It requires very little maintenance and becomes more impressive as it matures. In ideal outdoor conditions, older plants may develop branches and produce spectacular white night-blooming flowers that attract pollinators.

Its bold vertical form pairs beautifully with agaves, aloes, euphorbias, barrel cacti, and other drought-tolerant plants, creating a dramatic, water-wise landscape.

The first two photos serve a display purpose only. The succulent plant housed in the red pot comes in a 130mm diameter container. While the image provides a representative depiction of what you will receive, your plant may vary slightly because no two plants are exactly the same.