Green Pencil Cactus

The Unique Cactus that will Spark Conversation

Introducing the striking Euphorbia tirucalli, commonly known as the Pencil Cactus. This unique succulent is a must-have for lovers of distinctive plants. Native to Africa, its slender, cylindrical branches resemble a bundle of green pencils, making it a conversation starter in any setting.

Caring for your Pencil Cactus

Thriving in bright sunlight and requiring minimal water, the Pencil Cactus is perfect for both indoor and outdoor spaces. Its drought-resistant nature makes it an ideal choice for busy plant enthusiasts or those living in arid climates. As it matures, the plant can reach impressive heights, adding vertical interest to gardens, balconies, or interior spaces.

Light

The Pencil Cactus enjoys a bright environment. Direct sunlight, particularly in the morning, helps the plant thrive. However, it’s essential to monitor the plant to prevent sunburn, which might occur during extremely hot afternoons. If you’re growing the Pencil Cactus indoors, placing it near a south-facing window is usually ideal. An east or west-facing window can also work, especially with the aid of a sheer curtain to diffuse the intense rays.

Soil

Well-draining soil is essential for the Pencil Cactus. You can achieve this by using a commercial cactus or succulent mix, or make your own by combining standard potting soil with sand or perlite. Plant the cactus in a pot with drainage holes to prevent water from accumulating at the bottom.

Water

Like most succulents, the Pencil Cactus is drought-resistant, meaning that overwatering is a far greater danger than underwatering. During the growing season (spring and summer), watering every two to three weeks is usually sufficient. Allow the soil to dry out completely between watering sessions.

In winter, the plant enters a dormancy period, and its water needs decrease. Reducing watering to once a month or even less frequently may be necessary. This plant is quite forgiving when it comes to humidity, tolerating both low and moderate levels. If your home is particularly dry, the occasional misting won’t harm the plant but isn’t generally necessary.

Fertilizer

Fertilizing the Pencil Cactus is not obligatory, but doing so during the growing season can support more vigorous growth. A diluted, balanced fertilizer (such as a 10-10-10) can be applied once a month during spring and summer. Always follow the instructions on the fertilizer package to avoid overfeeding, which can lead to weak, lanky growth.

Pruning

The Pencil Cactus can grow quite tall, so pruning may be necessary to keep it at the desired height. Use sharp, clean pruning shears and be mindful of the plant’s sap, which can be irritating to skin and eyes.

Pests and Diseases

While generally resistant to pests, the Pencil Cactus might attract common succulent enemies like aphids, spider mites, and mealybugs. Regular inspections and prompt treatment with insecticidal soap or neem oil can manage these issues.

Propagation

Propagating the Pencil Cactus is relatively simple. Cut a healthy branch, allow it to dry for a day or two to form a callus over the cut end, and then plant it in well-draining soil. With proper care, the cutting should root and develop into a new plant.

Handling Precautions

Euphorbia tirucalli’s sap is toxic and can cause skin and eye irritation. Always handle the plant with care, and consider wearing gloves when pruning or repotting. Keep the plant out of reach of pets and children, and wash hands thoroughly after handling.