Scientific Name
Euphorbia trigona 'Rubra'
Common Name(s)
African Milk Tree, Good Luck Plant
Synonym(s)
Euphorbia trigona f. rubra, Euphorbia trigona 'Royal Red'
Scientific Classification
Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia
Description
Euphorbia trigona 'Rubra', also known as Euphorbia trigona 'Royal Red', is an attractive succulent with stems and leaves flushed red to magenta. The stems are often greener for a lovely bi-colored look. They are with 3 to 4 ridges and V-shaped lighter patterns. Spines are reddish-brown, up to 0.2 inches (5 mm) long, and arranged in pairs on the ridges. Leaves grow between the two spines on each ridge.
Hardiness
USDA hardiness zones 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).
How to Grow and Care
Euphorbias are very easy to care for. These plants require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH but cannot tolerate wet soil. Unlike most succulents, Euphorbia does not handle long periods of drought well. It may need weekly watering during the summer. Water whenever the soil is dry several inches below the surface. Water deeply, but don't let them sit in wet soil, which can cause root rot. Add some organic matter or fertilizer to the planting hole. Feed with a half-strength fertilizer monthly if you are growing them in containers or your soil is poor.
These succulents can be grown from seed, but they can be difficult to germinate (or even find). They are usually propagated by cuttings. The propagation can be tricky because of the exuding sap. Using a rooting hormone is recommended with Euphorbias. They tend to grow problem-free, but there are a few pests and diseases to be alert for.
Learn more at How to Grow and Care for Euphorbia.
Origin
Euphorbia trigona 'Rubra' is a form of Euphorbia trigona selected for its easily achieved red coloration.
Links
- Back to genus Euphorbia
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
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