Plant Profile: Euphorbia cyparissias

Euphorbia cyparissias, commonly known as Cypress Spurge, is a perennial herb characterized by its upright stems, slender leaves, and distinctive yellow, crescent-shaped glands that adorn the edges of its cup-like flowers. When fully grown, this plant bears a resemblance to miniature spruce or cypress trees. Its soft, needle-like foliage resembles a bottlebrush, while the chartreuse flowers cluster at the tips of the stems. It is important to note that the milky latex sap released from damaged leaves and stems can be harmful to skin and eyes, so wearing gloves and eye protection is advisable when handling this plant.

Cypress Spurge thrives in dry, well-drained soils and prefers full sunlight. It is adaptable to poor soil conditions, including rocky and sandy environments. The plant propagates through rhizomes and can become quite invasive, especially in fertile, moist soils, as it readily reseeds itself. To establish a dense ground cover, planting eight to ten specimens per square yard is typically sufficient. This resilient plant is drought-tolerant and is often found on dry banks and hillsides where few other plants can survive.

In terms of pests and diseases, Cypress Spurge is generally free from significant issues. However, its rapid growth can lead to it overshadowing nearby perennial plants.