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Part II: Good Rock Garden Plants

by NARGS contributors

Potentilla tridentata
[poh-ten-till-ah try-den-tah-tah]

Glossy dark green 3-part, 3-toothed leaves turn red in autumn. Clusters of dainty white flowers on 6-8" stems appear in late spring and summer. Rocky or sandy soil in full to part sun. From Canada south across the Midwest to the Atlantic and down into the mountains of Georgia. Zones 2-8. P. alba, though harder to find, is similar but longer blooming.