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Glossy dark evergreen leaves (inside leaves red in fall) make a handsome dense mounding shrub with long, deterrent thorns. Small bright yellow flowers cover the shrub in spring, and in winter the foliage is plum-purple, more so if in full sun. Fast growing.
Mature size: 3-4 ft T x 4-6 ft W
Featured on Great Plant Picks: https://www.greatplantpicks.org/plantlists/view/221
Minimum temperature: 0° F