SISYRINCHIUM

FAMILY: Iridaceae

TYPE
  • Perennials
SUN EXPOSURE
  • Full Sun
  • Partial Shade
WATER
  • Varies by Species

Plant Details

Iris relatives with narrow, grasslike leaves and small, six-segmented flowers that open in sunshine. The blossoms are pretty up close but not showy from a distance. Best suited for informal gardens or naturalizing; small types are good in rock gardens. Easy to start from seed; will self-sow. Not usually browsed by deer.

common blue-eyed grass

sisyrinchium angustifolium

  • Zones US, MS, LS, CS, TS; USDA 6-11.
  • Native to North America.
  • Grows 618 inches tall, 6 inches wide, with dark green leaves and clusters of 12 inches blue blossoms in summer.
  • Lucerne is 810 inches tall and bears large, bright blue flowers over a long period; 'Mrs.
  • Spivey', with pure white blooms, may reach 212 feet tall.
  • Suwanee, which may be a hybrid, is a compact grower to about 8 inches tall; vigorous and adaptable, with a profusion of sky-blue flowers.
  • Moderate to regular water.

atlantic blue-eyed grass

sisyrinchium atlanticum

  • Zones US, MS, LS; USDA 6-8.
  • Native to eastern U.S. Violet-blue flowers with yellow centers are carried on slender, wiry, branched stems that range in height from 4 inches to 212 feet tall.
  • Plants reach 68 inches wide.
  • Pale grayish green leaves.
  • Blooms from late spring into early summer.
  • Regular water.

argentine yellow-eyed grass

sisyrinchium striatum

  • Zones MS, LS, CS; USDA 7-9.
  • Native to Chile, Argentina.
  • To 3 feet tall, 1 feet wide, with attractive gray-green leaves.
  • In spring, produces spikelike clusters of many 12 inches flowers in pale yellow streaked with brown; blooms well into summer if old flower clusters are removed (if you don't remove them, you may have hordes of unwanted seedlings the next year).
  • Leaves of 'Aunt May' ('Variegatum') are striped with creamy yellow.
  • Moderate water.

mexican yellow-eyed grass

sisyrinchium tinctorium

  • Zones US, MS, LS, CS; USDA 6-9.
  • From Mexico and South America.
  • To 1 feet high and wide.
  • Narrow, blue-green leaves; light yellow, 34 inches flowers from early spring into summer.
  • Puerto Yellow has bright yellow blossoms.
  • Moderate to regular water.

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