Sweet Woodruff (Galium odoratum) A useful ground cover plant for poor soil, sweet woodruff is a vigorous, mat-forming perennial that provides a carpet of bright green, lance-shaped leaves in woodland gardens and shady borders. Clusters of white, starry flowers appear in spring. This fully hardy plant prefers well-drained to moist soil and partial sun to complete shade. H: 16 inches; S: 5 feet
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