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Emm's Plant House

Lemaireocereus Pruinosus 10.5cm H15cm

Lemaireocereus Pruinosus 10.5cm H15cm

Regular price £6.00 GBP
Regular price Sale price £6.00 GBP
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Lemaireocereus pruinosus, also known as the Gray Ghost Cactus, is a tall, columnar cactus with smooth, grey-green stems and prominent ribs. Native to Mexico, it’s prized for its elegant architecture, drought tolerance, and ability to thrive in bright, sunny environments.

  • Full Botanical Name: Lemaireocereus pruinosus
  • Common Names: Gray Ghost Cactus, Organ Pipe Cactus
  • Country and/or Region of Origin: Mexico
  • Growing Conditions in Native Habitat: Arid scrublands and rocky slopes with poor, sandy soil and intense sunlight

Care Guide

  • Care Guide:
  • Light: Full sun; thrives in very bright conditions
  • Ideal Room: Conservatory, greenhouse, or bright windowsill
  • Feeding: Cactus fertilizer every 6–8 weeks during spring and summer
  • Humidity: Low; prefers dry environments
  • Ideal Temperature: 20–35°C; protect from frost below 10°C
  • Watering: Deep watering when soil is completely dry; water sparingly in winter
  • Pet/Child Safe: Non-toxic (genus level) — safe for pets and humans, but sharp spines can puncture skin or cause irritation if handled
  • Soil Type: Coarse, mineral-based cactus mix with excellent drainage
  • Propagation: Stem cuttings after callousing or by seed
  • Eventual Height and Spread: Indoors 1.5–2 m; outdoors 10 m+ in native conditions
  • Growth Rate: Moderate to fast in high light and warmth
  • Pests and Treatment: Mealybugs and scale insects; remove manually or treat with neem oil
  • Repotting: Every 2–3 years in spring with fresh cactus mix
  • Pruning: Rarely required; remove damaged sections only
  • Air Purification: Minor; enhances air oxygenation
  • Folklore: In Mexican culture, columnar cacti symbolize protection and endurance
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