Stenocereus griseus (Lemaireocereus griseus)

Stenocereus griseus
Synonym: Lemaireocereus griseus
Common Name: Gray Ghost Organ Pipe

Stenocereus griseus, often referred to as the Gray Ghost Cactus or Gray Organ Pipe, is a striking, fast-growing columnar cactus native to arid regions of northern South America and the Caribbean. It forms tall, upright stems with a beautiful bluish-gray coloration, ribbed structure, and short, orderly spines—giving it a ghostly, elegant look perfect for desert landscapes or large container specimens.

This species is known for forming dense, tree-like clusters over time, making it ideal for natural fencing, xeriscaping, or creating a dramatic vertical presence. In the summer, mature plants may produce nocturnal white flowers followed by small, edible fruits.

☀ Light Requirements
Thrives in full sun. Outdoors, plant in a bright, open area. Indoors, place near the sunniest window or use high-intensity grow lighting to maintain its compact, upright form.

💧 Watering Needs
Water deeply but infrequently. Allow the soil to dry out completely between waterings. It’s highly drought-tolerant once established. Reduce watering in winter.

🌡 Temperature Tolerance
Hardy to around 25°F in dry conditions. Protect from frost when wet or during prolonged cold snaps. For winter orders or cold zones, add a [Heat Pack].

✨ Special Features
• Stunning Blue-Gray Color – Eye-catching glaucous stems with symmetrical ribbing
• Columnar Form – Grows tall and branching, great for architectural planting
• Edible Fruit – Mature specimens produce small, sweet cactus fruit after flowering

Other Common Names:
Gray Ghost Cactus, Organ Pipe Cactus (not to be confused with Stenocereus thurberi), Lemaireocereus griseus

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 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.