Heuchera maxima 1g

Heuchera maxima is an evergreen perennial endemic to the California Channel Islands, where it grows on shaded canyon slopes, coastal bluffs, and woodland margins. One of the largest species in the genus, it is valued for its bold foliage, shade tolerance, and ability to perform in dry conditions once established. Due to its vigor, drought tolerance, and ornamental qualities, H. maxima has served as the primary parent of many of the most successful California-bred coral bells hybrids, including numerous selections developed at Rancho Santa Ana Botanic Garden.

Forms dense mounds of large, glossy, bright to dark green foliage 1–2 feet tall and 1–2 feet wide. In late spring and early summer, sturdy flower stalks rise 2–3 feet above the foliage bearing airy panicles of small white to pale pink flowers that attract hummingbirds, native bees, and other pollinators.

Performs best in part shade to full shade, though it will tolerate full sun in cooler coastal climates with adequate moisture. Adapted to regular, occasional, and low-water landscapes once established. Particularly valuable as an understory planting beneath established trees, where it provides year-round evergreen foliage and thrives in conditions that can be challenging for many other perennials. An excellent choice for planting beneath coast live oaks, valley oaks, sycamores, and other mature trees.

Useful in woodland gardens, shaded borders, dry shade gardens, oak woodland plantings, California native gardens, habitat plantings, coastal landscapes, erosion-control plantings, and other understory applications. Pairs well with other California native shade plants including Ribes viburnifolium, Salvia spathacea, Berberis repens (syn. Mahonia repens), and other Heuchera maxima hybrids. Its large foliage and durable nature make it especially effective for mass plantings, naturalistic landscapes, and low-water gardens throughout Southern California.

Identification Note: Due to its popularity and widespread use in breeding programs, Heuchera maxima is sometimes confused in the nursery trade with hybrid coral bells and non-native Heuchera species. True H. maxima is distinguished by its large evergreen foliage, robust habit, and tall airy flower panicles.

Generally low maintenance and long-lived. Mealybugs may occasionally occur around the crown, particularly in nursery production or densely planted situations. Slugs and snails can damage new growth in moist, shaded environments. Crown and root rot may develop in poorly drained soils or under prolonged wet conditions. Deer may browse foliage in some locations. Best performance is achieved with good drainage and adequate air circulation. Once established, plants exhibit excellent drought tolerance, particularly in shaded conditions.