Southern Prickly-ash is a spiny, deciduous tree native to the southeastern coastal plains that grows 15 to 30 feet tall (occasionally reaching 50 feet), often as a dense thicket. Known by several colorful names, hercules-club, toothache tree, pepperbark, and tingle tongue, this hardy species thrives in Zones 7 through 9 and tolerates everything from poor soils to coastal conditions. In spring, fragrant and showy flowers appear on separate male and female trees, drawing butterflies and other pollinators. Its leathery compound leaves and dramatic spiny trunk and branches give it sculptural presence in the landscape, while its low maintenance demands and ability to handle both full sun and partial shade make it surprisingly adaptable.
Partial Sun
Moderate
7-9
360in H x 300in W
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Moderate
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This tree earned its 'tingle tongue' nickname honestly; the spiny stems and trunk create a striking architectural presence year-round. Spring brings fragrant, showy flowers that attract butterflies, particularly giant swallowtail butterfly larvae, which may heavily defoliate the tree in some years, a sign the plant is fulfilling its ecological role. Its natural tendency to colonize via root suckers means it forms dense thickets in the wild, making it useful as a hedge where its spiny growth can serve multiple purposes.
This tree serves well as a hedge or thicket-forming screen, where its spiny growth habit provides natural barriers. Its primary value lies in supporting native butterfly and pollinator populations, making it essential for wildlife gardens and native plant landscapes in the southeastern United States.
No timeline data available yet for this variety.
Prune Southern Prickly-ash primarily to manage its natural tendency to spread via root suckers and form dense thickets. Remove lower branches if you prefer a more tree-like form rather than a multi-stemmed shrub. Light pruning to shape the canopy and remove any damaged or crossing branches can be done in late winter or early spring before new growth emerges. Its spiny stems require careful handling during pruning.
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“Southern Prickly-ash is a native species of the southeastern United States, primarily found in the coastal plains of the Atlantic Ocean and Gulf regions. Its common names reflect its traditional uses and distinctive characteristics; indigenous peoples and early settlers valued it for medicinal and culinary purposes, particularly for its numbing compounds found in its bark and fruit. The species has maintained its presence in American gardens and wild spaces for centuries, recognized both as a native plant worth preserving and a cultural touchstone tied to regional botanical heritage.”