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Euphorbia milii f. lutea – Yellow Crown of Thorns

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Scientific Name

Euphorbia milii f. lutea Leandri

Common Names

Yellow Crown of Thorns

Scientific Classification

Family: Euphorbiaceae
Subfamily: Euphorbioideae
Tribe: Euphorbieae
Subtribe: Euphorbiinae
Genus: Euphorbia

Description

Euphorbia milii f. lutea is a succulent climbing shrub growing to 6 feet (1.8 m) tall. Grayish-brown, 5-7 sided stems, branched and up to 2 – 3 feet (60 – 90 cm) in height, with many prominent, grey spines up to 1 inch (2.5 cm) long. The leaves are found mainly on new growth and are obovate (wider near the tip), up to 1.4 inches (3.5 cm) long and 0.6 inch (1.5 cm) broad. Small, variably yellow flowers, up to 0.5 inch (1.2 cm) broad, subtended by a pair of conspicuous petal-like bracts.

Euphorbia milii f. lutea - Yellow Crown of Thorns

Photo via cactofili.org

Hardiness

USDA hardiness zone 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).

How to Grow and Care

Euphorbias are very easy to care for. They 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 they cannot tolerant 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. If you are growing them in containers or your soil is poor, feed with a half-strength fertilizer monthly… – See more at: How to Grow and Care for Euphorbia.

Origin

Native to Madagascar.

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