Tree heath is an evergreen shrub that grows into an impressive presence in the garden, reaching 8 to 12 feet tall at maturity, occasionally stretching toward 20 feet. Native to southwestern Europe, the Mediterranean, and northern Africa, this plant produces fragrant bell-shaped flowers in dense, pyramidal clusters that can extend 16 inches long, blooming in May with white to pink petals against fine, needle-like foliage. Hardy in zones 7 through 9, it stands as one of the tallest species within the Erica genus and brings an elegant, airy structure to mixed plantings.
Partial Sun
Moderate
7-9
144in H x 72in W
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High
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The dense, pyramidal flower panicles that unfurl in May carry a fragrance that draws you in close, and the blooms rise in stunning white-to-pink spikes up to 16 inches long. Linear leaves with rolled margins grow in neat whorls, creating fine texture even when the plant is not in flower. This is genuine evergreen substance, not the delicate, airy feel of many heaths; the growth habit can reach 8 to 12 feet tall and spread 4 to 6 feet wide, creating an architectural anchor in a landscape.
Tree heath is grown primarily as an ornamental shrub for its striking spring flowers and year-round evergreen foliage. The dense, fragrant flower spikes make it valuable in mixed borders, where it contributes both visual drama during bloom and structural interest throughout the year. In zones 7 through 9, it anchors plantings where its height and flowering display can be fully appreciated.
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Transplant young tree heath into the garden in spring, choosing a protected location in zones 7 and 8. Space plants 4 to 6 feet apart to accommodate mature spread. Ensure soil is amended with peat or composted bark to maintain acidity and good drainage. Water well after planting.
Light pruning after flowering in late spring encourages a more compact form and denser branching. Avoid cutting into old, leafless wood, as tree heath does not regenerate reliably from hard pruning. Remove any frost-damaged stems in spring once new growth appears and danger of hard frost has passed.
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“Erica arborea carries the story of Mediterranean and North African plants finding their way into European gardens and, subsequently, into temperate regions worldwide. As a native species rather than a modern hybrid or selection, this plant represents what gardeners in its native regions have long appreciated, though cultivation in colder zones like the American South and temperate Northeast requires careful placement and winter protection. Its prominence as the tallest species in the Erica genus reflects its exceptional stature compared to the lower-growing alpine heaths more commonly encountered in nurseries.”