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Schizostylis coccinea
Schizostylis coccinea

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Zone
Zones 5-9, 14-29, 31, H1, H2
Full SunPartial Sun
Full, Partial
Ample WaterRegular Water
Ample, Moderate

Schizostylis coccinea

Crimson Flag
Iridaceae
Bulbs and bulblike plants, Evergreen, Perennials

Beloved for its autumn bloom, this South African native has upright, swordlike leaves like gladiolus, and star-shaped, 2-in.-wide flowers like watsonia. Blossoms are carried on slender, 1 1/2–2-ft.-high stems. The species has crimson flowers; but color variants include white ‘Alba’, watermelon red ‘Oregon Sunset’, and several in pink shades (‘Mrs. Hegarty’, ‘Sunrise’, ‘Viscountess Byng’). Excellent cut flowers.

In spring, set rhizomes 1/2–1 in. deep, 1 ft. apart in organically enriched, well-drained soil. Water generously from planting until flowering ends; then water more sparingly until growth resumes in spring. If clumps become crowded, divide them in early spring; each division should have at least five shoots. In cold-winter regions, grow in pots and protect in winter.

 

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