Description:
Myrtle spurge, also known as donkey-tail spurge, is a striking, low-growing succulent perennial known for its unique, spiraling blue-green foliage and bright chartreuse-yellow flowers in early spring. While its ornamental appearance makes it a popular choice for rock gardens and xeriscapes, it’s considered invasive in many areas and can be harmful to both ecosystems and humans.
Identification Features:
Leaves: Thick, fleshy, blue-gray leaves arranged in a spiral along trailing, snake-like stems.
Flowers: Unique yellow-green, cup-shaped bracts appear in early spring, often before many other plants bloom. True flowers are small and tucked within the showy bracts.
Growth Habit: Spreading, mat-forming, and low to the ground — stems can reach up to 12 inches tall and sprawl outward.
Sap: Milky white latex sap that can irritate skin and eyes.
Growing Conditions:
Zones: Hardy in USDA Zones 5–9.
Sun: Prefers full sun but can tolerate partial shade.
Soil: Well-drained, sandy or rocky soils — highly drought tolerant.
Water: Minimal watering required once established; thrives in dry conditions.
Landscape Use:
Myrtle spurge is commonly used in rock gardens and xeriscaping for its dramatic foliage and ability to thrive in poor soil. However, in many western U.S. states, it is classified as a noxious weed due to its aggressive spreading habits and ability to outcompete native plants.
Wildlife and Human Considerations:
Toxicity: The plant’s milky sap can cause severe skin irritation and eye damage if touched or rubbed. Gloves and caution are advised when handling.
Invasiveness: Myrtle spurge self-seeds prolifically and can rapidly take over natural landscapes, displacing native species.
Fun Fact:
Despite its beauty, myrtle spurge has earned a bad reputation in wild areas — in some regions, pulling or chemically controlling it is required by law to protect native plant diversity.
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