Euphorbia polychromaCushion spurge

Name:Euphorbia polychroma
科:大戟科
Family:Euphorbiaceae
属:大戟属
common name:Cushion spurge
introduce:Plant Type: Herbaceous perennial
Family: Euphorbiaceae
Missouri Native: No
Native Range: Central and southeastern Europe, Asia Minor
Height: 1 to 1.5 feet
Spread: 1 to 1.5 feet
Bloom Time: April - May  
Bloom Color: Yellow bracts
Sun: Full sun (only)
Water: Dry
Maintenance: Medium

General Culture:

Best grown in dry, well-drained soils in full sun. Appreciates some light afternoon shade in hot summer climates. However, clumps tend to open up and lose their attractive cushion shape in too much shade. Quite tolerant of poor soils, including rocky, sandy ones. Freely self-seeds. Promptly remove spent flowers (shearing plants to shape is one option) to prevent any unwanted self-seeding.

Noteworthy Characteristics:

Cushion spurge is a mounding, clump-forming perennial which typically grows in a dome (or cushion) shape to 12-18" tall and as wide on erect, sturdy stems bearing oblong, downy, medium green leaves (to 2" long). Cymes of inconspicuous greenish flowers (lacking both sepals and petals) bloom at the stem ends in spring. Although the flower cymes are not showy, they are subtended by long-lasting, bright sulphur-yellow bracts which are exceptionally showy. Stems exude a toxic, milky sap when cut. Leaves turn red in fall. Synonymous with Euphorbia epithymoides.

Problems:

No serious insect or disease problems. Some gardeners experience skin rashes from contact with the milky sap of this plant.

Uses:

Borders.