'Bonfire' Euphorbia gives gardeners an edge in remembering its Latin name, Euphorbia polychroma, as this perennial fills the garden with dynamic color. The flowers are actually flowering bracts, and consequently, last much longer than petals in the spring garden. The foliage provides a strong presence long after the bracts have faded. Grow in sharply draining soil to guard against winter moisture, or position these fascinating plants on a slight slope in a sunny location to help with drainage. In the spring, resist the temptation to cut back the older stems, as they will re-foliate and provide a show for the spring garden. Absolutely stunning paired with spring-blooming Alliums. Use gloves when pruning, as milky sap can be a skin irritant.