Upcoming Events: Tissue Culture Workshop Oct 3 @ 11 am / Succulent Pumpkin Workshop Oct 4 @ 2 pm / Plant Swap Oct. 10 @ 10 am / Stained Glass Workshop Sunday Oct. 11th @ 2 pm
Euphorbia Red Trigona is a dramatic upright succulent known for its branching, cactus-like stems and rich reddish coloration. Its triangular stems are lined with small spines and tiny leaves that can develop shades of burgundy, bronze, red, and deep green. Strong light typically brings out the plant’s best red coloring, creating a striking architectural plant that can become an impressive floor specimen over time.
The proper botanical name is Euphorbia trigona ‘Rubra’, commonly called Red African Milk Tree, Royal Red, or Red Cathedral Cactus. Despite its cactus-like appearance, it is not a true cactus. It belongs to the Euphorbia family and is closely related to the green form of Euphorbia trigona. The “Rubra” name refers to the red or burgundy coloration of its stems and foliage.
Euphorbia Red Trigona does best in very bright light with several hours of direct or gently filtered sunlight. Strong light helps maintain its deepest red and burgundy coloration. Plants grown in lower light may become greener and develop thinner growth. Gradually acclimate the plant before exposing it to intense direct sunlight.
Allow the potting mix to dry completely or almost completely between waterings, then water thoroughly and allow excess water to drain. Its thick stems store moisture, making it drought tolerant. Reduce watering considerably during cooler months or periods of slower growth.
Use a very well-draining, gritty cactus or succulent mix in a container with drainage. Pumice, perlite, lava rock, coarse sand, or other mineral amendments can improve drainage and help prevent excess moisture from remaining around the roots.
Euphorbia Red Trigona prefers warm temperatures, low to moderate humidity, and good airflow. Protect it from freezing temperatures and prolonged cold, wet conditions. Large specimens can become top-heavy, so a sturdy container may be necessary as the plant matures.
This Euphorbia develops a tall, upright, branching growth habit and can eventually become several feet tall indoors. New branches emerge from the ridged stems, gradually creating a candelabra-like shape. Pruning can control its height and encourage branching, but extra care should be taken whenever the stems are cut because they release an irritating milky latex sap.
Euphorbia Red Trigona is toxic to cats and dogs and should also be handled carefully around people. Its milky latex sap can cause significant irritation to the skin, eyes, and mouth and may cause vomiting or other digestive symptoms if ingested. Wear gloves when pruning or propagating the plant, avoid contact with the eyes, and keep it out of reach of pets and small children.
Upcoming Events: Tissue Culture Workshop Oct 3 @ 11 am / Succulent Pumpkin Workshop Oct 4 @ 2 pm / Plant Swap Oct. 10 @ 10 am / Stained Glass Workshop Sunday Oct. 11th @ 2 pm
