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Humboldt Plant Co

Pencil cactus

Pencil cactus

Low stock: 1 left

$30.00 USD
$30.00 USD
Sale Sold out
Taxes included.

The Pencil Cactus (Euphorbia tirucalli) is a sculptural, modern houseplant known for its slender, pencil-like green stems. It has a striking, architectural presence and thrives with very little care, making it perfect for those who prefer bold style with minimal effort.

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Pro Tip


Rotate the plant regularly for even growth, and handle with care, its sap is caustic and should be kept away from skin and eyes.

  • Light and Placement

    This plant loves bright light, including direct sunlight. Place it near a south or west-facing window for optimal growth. It can tolerate lower light for short periods but will stretch and lose its form without enough sun.

  • Watering and Care

    Being a succulent, the Pencil Cactus needs minimal watering. Let the soil dry out completely between waterings, usually every 2–3 weeks, depending on your environment. Overwatering can lead to root rot. Always plant in well-draining soil and avoid misting.

  • Growth and Size

    Indoors, Pencil Cactus can grow up to 4–6 feet tall over time, with a tall, upright, and sometimes bushy shape. In its natural habitat, it can grow into a large shrub or small tree, but container growth keeps it more manageable.

  • Pet-Friendly?

    Highly toxic if ingested, and the sap can irritate skin and eyes. Keep it out of reach of pets and children. Wear gloves when pruning or repotting.

  • Benefits and Air Quality

    While not known as a strong air purifier, the Pencil Cactus is excellent for adding a sculptural, minimalist aesthetic to bright interiors or office spaces.

  • Difficulty level

    Very easy – Ideal for beginners or busy plant lovers who forget to water.

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