Thunberg Spirea           sp-i-RE-a thun-BER-je-i

• Deciduous shrub, 3-5 ft (0.0-1.5 m) tall and wide, arching, willowy.   Leaves 25-40 mm long, narrow, only 3-6 mm wide (narrower than S. ´ arguta), sharply serrate, pale green.   Flowers are white, single, small (ca. 8 mm across), often on shorter shoots than on S. ´ arguta.
• Sun to light shade. Not easy to distinguish S. thunbergii from S. ´ arguta; when in bloom, S. × arguta has very long unbranched shoots.  This difference can still be observed as bloom ends and shoot growth begins.
• Hardy to USDA Zone 4      Native to Japan and China. After Carl Peter Thunberg.
• Oregon State Univ. campus: east side of Milam, south end.