How to Grow and Care for Tanzanian Zipper Plant

The Tanzanian Zipper Plant, known scientifically as Euphorbia anoplia, is a unique succulent that grows in clusters of leafless, upright columns. These deep green stems are marked by prominent ridges and striations, creating a pattern along the edges that resembles a zipper.

Though its compact, barrel-like shape might suggest it is a cactus, it belongs to the Euphorbia genus of succulents native to Africa. The plant’s form adds significant visual texture to a collection, growing up to 12 inches tall in a clumping habit.

Tanzanian Zipper Plant Care

Light

This succulent flourishes in bright, indirect sunlight. Placing it near a window where it can receive about six hours of sunlight is a good strategy, but it should be shielded from the harshest afternoon rays. Too much direct sun can scorch the stems, which may manifest as yellowing or curling. A location that is partially shaded during the hottest part of the day is ideal.

Soil

For this succulent, excellent drainage is paramount. Using a commercially available cactus or succulent potting mix is an effective choice, as it is formulated to be porous and prevent water accumulation around the roots. This helps prevent root rot. You can also create your own mix by incorporating materials like perlite or pumice to increase aeration and drainage.

Water

Watering should be approached with care, as overwatering is a common pitfall. The most reliable technique is the “soak and dry” method, where the plant is watered thoroughly until water exits the drainage holes. Before watering again, allow the soil to dry out completely. Checking that the top few inches of soil are dry is a good practice. During its winter dormancy, watering frequency should be reduced significantly.

Temperature and Humidity

This succulent is well-suited for indoor environments because it prefers average room temperatures. It thrives in warm conditions, with an ideal daytime temperature of around 80°F (27°C). The plant is not cold-hardy and must be protected from frost, which can cause permanent scarring on its stems. It tolerates low humidity well and does not require special humidifying measures.

Fertilizer

The Tanzanian Zipper Plant is a light feeder and does not require frequent fertilization. During the active growing seasons of spring and summer, a balanced, all-purpose fertilizer diluted to half-strength is sufficient. Applying it once or twice during this period will support its growth. Avoid fertilizing during the fall and winter when the plant is dormant.

Propagating the Tanzanian Zipper Plant

Propagating this plant is most easily accomplished using the offsets, or “pups,” that develop at the base of the mother plant. For the best chance of success, select a pup that has reached a reasonable size, making it sturdy enough to survive on its own.

To begin, carefully detach a chosen pup from the main cluster, using a clean tool to make a sharp cut. The cut surface of the offset needs to dry and form a callus, which prevents the cutting from rotting when planted. Place the pup in a dry, shaded area for several days until the wound has sealed over.

After the callus has formed, the pup is ready for planting. Place it in a small pot filled with the same well-draining succulent mix used for the parent plant. Water the new cutting sparingly, allowing the soil to dry out completely between waterings as it establishes its root system.

Toxicity and Common Problems

A significant consideration when caring for this plant is its toxicity. Like all plants in the Euphorbia genus, it produces a milky white sap, or latex, which is an irritant. This sap can cause skin irritation and is toxic if ingested by humans or animals. It is strongly recommended to wear gloves and protective eyewear when handling a broken or cut part of the plant.

The most frequent cultivation issue is overwatering, which leads to root rot. This condition can quickly harm the plant, and signs include a base that becomes mushy, soft, or turns yellow.

The Tanzanian Zipper Plant can occasionally attract common succulent pests like mealybugs. These small, white, cottony insects tend to hide in the crevices and joints of the plant. Regular inspection can help you catch any potential infestations early.