Gladiolus 'Zizanie' Bulbs

'Zizanie' is a large-flowering gladiolus that brings bold, painterly beauty to the summer garden. Its 16- to 36-inch vertical flower stalks rise above a fan of lush, sword-shaped foliage, opening from the bottom up to reveal stunning orchid-like blooms splashed with vibrant red and white. These eye-catching flowers add dramatic flair, whether showcased in the garden or arranged in a vase.

A Gladiolus x hortulanus variety, commonly known as gladiolus, glads, or sword lilies, 'Zizanie' is a tender perennial in Zones 7-10. For the most striking effect, plant 'Zizanie' in groups or masses in garden beds, borders, containers, or even rock gardens. Taller stalks may require staking for support in windy locations.

'Zizanie' gladiolus thrives in sunny to partially shaded spots with fertile, well-draining soil that holds just enough moisture for healthy growth. Amend sandy or clay-heavy soils with organic materials like bark or peat moss to improve their texture and drainage. Fertilize lightly after planting and again in summer with a balanced plant food. Water thoroughly during planting and regularly during growth and blooming, ensuring the soil is moist but not waterlogged. Add a layer of mulch to retain moisture and keep the soil cool.

Plant bulbs after the last frost in a wind-protected area, spacing them 4 to 6 inches apart and planting them 4 to 6 inches deep. For an extended bloom season, stagger plantings every two weeks throughout spring. After flowering, allow the foliage to grow until it browns or frost is imminent. Then, lift the corms, clean and dry them, and store them in a cool, dry spot (40-50�F) until the next growing season.