Sisyrinchium 'E. K. Balls' is a clump-forming perennial from the iris family, prized for its distinctive mauve flowers that bloom from May through June. Despite its grass-like foliage, this hybrid cultivar belongs to the iris family, not the grass family, and grows 6 to 9 inches tall with a spread of 6 to 12 inches depending on growing conditions. Hardy from zones 4 to 9, it thrives in full sun with moderate water and moderate maintenance, making it a low-fuss addition to rock gardens, borders, and containers. The variety is sometimes sold under the name 'Ball's Mauve' and tolerates drought once established, rewarding gardeners with showy blooms season after season.
Full Sun
Moderate
4-9
9in H x 12in W
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Moderate
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The mauve flowers on 'E. K. Balls' arrive in late spring as a quiet complement to brighter garden neighbors, offering a subtle sophistication that comes from its hybrid breeding. Its fan-like tuft of narrow, grass-like blue-green foliage stays tidy without demanding much attention, and the plant handles both consistent moisture and periods of drought with equal grace. Mature clumps reach modest proportions, filling a 12-inch spread over time, so it slots neatly into tight spaces where full-sized perennials would overwhelm the planting scheme.
Sisyrinchium 'E. K. Balls' is grown as an ornamental perennial for its showy mauve flowers and compact, clump-forming habit. Gardeners use it in rock gardens, border fronts, container plantings, and other spaces where modest height and fine foliage texture are assets. The plant's drought tolerance and low disease susceptibility make it a durable choice for naturalistic or low-maintenance garden designs.
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Shear plantings back after bloom concludes in June to tidy the foliage and maintain the plant's neat appearance for the rest of the growing season. Divide established clumps every 2 to 3 years in spring or early fall to rejuvenate vigor and prevent overcrowding.
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“Sisyrinchium belongs to a genus of roughly 90 species native to North and South America, with roots tracing back to ancient Greek plant nomenclature. 'E. K. Balls' is a hybrid cultivar, the result of deliberate cross-breeding to achieve its distinctive mauve flower color and reliable garden performance. The cultivar shares its identity with 'Ball's Mauve,' underscoring the work of plant breeders who selected for specific floral characteristics within the genus.”