Scientific Name
Euphorbia neoarborescens Bruyns
Synonym(s)
Monadenium arborescens
Scientific Classification
Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia
Origin
Euphorbia neoarborescens is endemic to Tanzania.
Description
Euphorbia neoarborescens is a sparsely branched succulent shrub or small tree that can grow up to 14 feet (4.25 m) tall. The deciduous leaves are fleshy, light green, obovate, measuring up to 10 inches (25 cm) in length and up to 6 inches (15 cm) in width. The underside of young leaves is bright red, turning green as they mature. The stem is pale green, obtusely 5-angled, with scattered, shallow projections along the angles, occasionally crowned by a minute, reddish-brown spine. It can reach up to 4 inches (10 cm) thick. On young plants, angles are more pronounced, and spines are larger.
The small flowers are pale green, tinged with pink, and appear in 3- to 7-forked cymes on peduncles that can grow up to 2.6 inches (6 cm) long.
Hardiness
USDA hardiness zones 9b to 11b: from 25 °F (−3.9 °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. More die from overcare and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they 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 top few inches of soil are dry. Water them deeply, but avoid letting them sit in wet soil, as this 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 challenging to germinate, and they may be difficult to find. They are usually propagated by cuttings. This can be tricky because of the sap that exudes. Rooting hormone is recommended with Euphorbias. They tend to grow problem-free, but there are a few pests and diseases to be alert for.
See more at How to Grow and Care for Euphorbia.
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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