Gladiolus ‘Rainbow Mix’ is a lively and colorful gladiolus collection, featuring tall spikes of trumpet-shaped flowers in a variety of vibrant shades including red, pink, yellow, orange, and white. Each stem carries multiple blooms that open progressively from bottom to top, creating a long-lasting, tiered display of color. The sword-like, upright green foliage provides a neat, vertical backdrop that highlights the brilliance of the flowers. Perfect for borders, mass plantings, or cut flower arrangements, this mix adds dynamic, cheerful color to summer gardens.
- Size: Height: 90–120 cm (3–4 ft). Spread: 25–35 cm (10–14 in)
- Flowering: Mid to late summer
- Growth habit: Upright clumping perennial from corms
- Light: Full sun for best flower production.
- Soil: Well-drained, fertile soil enriched with organic matter; avoid heavy, waterlogged soil.
- Water: Moderate to regular watering; keep soil moist during active growth and flowering.
- Hardiness: Hardy in Zones 7–10; in colder climates like Regina, SK, corms should be lifted and stored over winter.
- Planting depth: Plant corms 7–10 cm (3–4 in) deep, spacing 15–20 cm apart.
- Maintenance: Remove spent flowers to encourage continued bloom; allow foliage to die back naturally to feed the corms.
- Propagation: By corm division or offsets after flowering.
- Support: Tall spikes may require staking in windy locations.