Upright myrtle spurge (Euphorbia rigida)

Upright myrtle spurge

Also known as: Silver spurge, Rigid spurge

Upright myrtle spurge (Euphorbia rigida) is a stunning perennial often mistaken for a succulent. Its blue-green leaves grow in tight spirals topped by clusters of flowers that range from bright green to red-edged yellow. Unfortunately, the plant is toxic to ingest, and its milky sap is a known skin irritant.

Scientific classification

Species

Upright myrtle spurge (Euphorbia rigida)

Nances, spurges, willows and allies

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Perennial

Lifespan

Herb

Plant Type

Spring, Summer, Late winter

Bloom Time

2.5 cm

Flower Size

Yellow, Green

Flower Color

Green, Blue, Yellow

Stem Color

Evergreen

Leaf type

15 - 35 ℃

Ideal Temperature

Images of Upright myrtle spurge

Distribution of Upright myrtle spurge

Distribution Map

Upright myrtle spurge is primarily native to the Mediterranean region, the Middle East, and certain areas in North Africa. Its natural distribution encompasses the northern and eastern borders of the Mediterranean Sea and extends to the Middle East. It thrives in subregions with a Mediterranean climate. As an adaptable species, upright myrtle spurge has been introduced and cultivated in various temperate zones globally, including parts of central Europe.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Great landscape filler for xeric landscapes, rock gardens, containers

Hemisphere Trend Curve

Northern

Sorthern

Quickly Identify Upright myrtle spurge

Compact shrub reaching 2 feet (60 cm) tall with steel blue-green lanceolate leaves in spiral patterns.

Showy chartreuse-yellow bracts surrounding small green flowers, creating a vivid floral display.

Lobed oval fruit capsule with green coloration, less than an inch in size, may change texture.

Succulent, lance-shaped leaves transitioning to red and bronze tones in fall, with simple vein pattern.

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Care Guide for Upright myrtle spurge

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Native to the Mediterranean, upright myrtle spurge thrives in dry, rocky soils and is drought-tolerant, requiring weekly watering. As an evergreen perennial, it maintains year-round foliage, making it a low-maintenance choice for indoor and outdoor environments with minimal supplemental watering needs.

Fertilize: For upright myrtle spurge, use a balanced nutrition fertilizer during active growth and high phosphorus fertilizers for blooming, fertilizing bi-monthly in growing seasons. Avoid over-fertilization to prevent root burn, withhold feeding in cooler months, and thoroughly water after application to ensure optimal growth.

Pruning: Characterized by rigid growth and blue-green foliage, upright myrtle spurge requires annual pruning in early spring or late winter. Trim up to one-third to promote health, denser foliage, and prolific flowering. Wear gloves as upright myrtle spurge may release a milky sap that can irritate the skin.

Propagation: Upright myrtle spurge can be propagated via stem cuttings. Let the cut end dry to form a callus before planting in well-draining soil. Keep the soil evenly moist but not soggy. Rooting occurs in a few weeks, followed by new growth indicating success.

Repotting: Repot upright myrtle spurge every 2-3 years in early spring, choosing a slightly larger pot with drainage. After repotting, provide bright light and avoid overwatering. Handle upright myrtle spurge carefully due to sap irritation, ensuring its vibrant blooms and structure are preserved.

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