Euphorbia polychroma (Cushion Spurge)

Long-lived and incredibly showy, Euphorbia Polychroma, commonly called Cushion Spurge, is a mounding, clump-forming perennial considered one of the best for borders. Growing in an attractive dome (or cushion), it bears dense, flattened golden-yellow flowers in spring, and is one of the few perennials to display a showy fall foliage. Its erect, sturdy stems bear cymes of inconspicuous greenish flowers in mid-spring. Although the flowers are not showy, they are subtended by long-lasting, bright sulfur-yellow bracts which are exceptionally eye-catching. The foliage of medium green leaves turns to a showy red, purple, or orange in fall, providing a long season of interest.

• Typically grows up to 12-18 in. tall and wide (30-45 cm)
• Won the prestigious Award of Garden Merit by the Royal Horticultural Society (1993)
• Remaining attractive during all its growing season, this remarkable plant is resilient to most pests and diseases, is drought, deer & rabbit tolerant and is easy to care for.
• A full sun lover (tolerates light shade), it thrives in dry, well-drained soils. Poor soils, including rock or sandy ones, are welcomed!
• Perfect addition to beds, borders, containers, cottage gardens, or Mediterranean Gardens. 
• Main varieties are Euphorbia ‘Bonfire’ – 10 in. tall (25 cm) with leaves emerging green but quickly turning burgundy contrasting with the bright yellow bracts in spring; Euphorbia ‘Candy’ (‘Purpurea’) – 12-18 in. tall (30-45 cm) with purple stems and purplish leaves and pale yellow flower heads; Euphorbia ‘Emerald Jade’ – 12 in. tall (30 cm) with showy bright green floral bracts and fall foliage.
• Propagates by seed, cuttings, division, or separation. Self-seeds freely if not deadheaded. Remove spent flowers or cut the plants back by a third to prevent any undesired self-seeding and promote bushy growth. Divide in spring. Doesn’t like to be disturbed.
• All parts of the plant are highly toxic if ingested. The milky sap may irritate the skin and eyes.