Devilwood (Osmanthus armatus) is a dense, evergreen shrub native to the misty slopes of western China, where it thrives in rocky alpine thickets. Hardy in zones 7 through 9, this broadleaf beauty grows 12 to 17 feet tall with a spread of 8 to 10 feet, occasionally rising higher as a small tree. Its thick, spiny, holly-like leaves are deeply glossy and evergreen, and come September and October, tiny creamy tubular flowers emerge with a sweetly aromatic fragrance that fills the air around it. Despite its menacing common name, Devilwood is a well-behaved ornamental that tolerates both sun and shade and asks only for moderate water and care.
Partial Sun
Moderate
7-9
204in H x 120in W
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High
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The spiny, rigid leaves catch the light like polished jade, and when you brush past them in fall, the shrub releases a surprisingly delicate sweet fragrance that seems to contradict its prickly demeanor. In zones 7 through 9, Devilwood settles in as a reliable evergreen anchor, holding its deep green foliage year-round while producing showy flowers in late September and October. Its dense, upright growth habit and moderate maintenance requirements make it a natural choice for hedging or as a specimen shrub in protected garden spots.
Devilwood thrives as a hedging plant, where its dense, bushy growth and spiny foliage create an attractive and somewhat impenetrable screen. Its evergreen nature keeps it ornamental year-round, while the fragrant fall flowers add seasonal interest. In colder zone 6 gardens with protected microclimates, it can be grown as a specimen shrub in sheltered locations with winter mulch protection.
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Devilwood is typically propagated from stem cuttings rather than seed. Transplant rooted cuttings outdoors in spring after the danger of hard frost has passed, spacing them 8 to 10 feet apart if hedging. Choose a location with full sun to partial shade and ensure the soil is amended with humus before planting.
Clip off growing tips in mid to late spring to maintain compact size and encourage bushier, fuller growth. Beyond spring tip-pruning, Devilwood requires only moderate maintenance; prune out any winter-damaged growth and maintain the desired shape as needed.
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“Osmanthus armatus hails from the thickets and rocky lower alpine slopes of Hubei and Sichuan in western China, regions where it has evolved to withstand cool mountain winters and well-drained rocky soils. This species made its way into Western horticulture as plant explorers recognized its ornamental potential, and it has since become valued for its combination of hardiness, evergreen foliage, and fragrant autumn blooms. The plant's journey from remote Chinese mountain slopes to temperate gardens reflects the broader 19th and 20th-century discovery of Asian ornamental shrubs that have enriched gardens worldwide.”