Gladiolus
Gladiolus spp.
Iridaceae · Corm
Gladiolus, often called 'sword lilies', are known for their tall, majestic flower spikes adorned with numerous trumpet-shaped blooms. They are a spectacular addition to summer gardens and make excellent cut flowers.
- · Plant corms in spring after the danger of frost has passed.
- · Provide staking for taller varieties to prevent toppling.
- · In colder zones, lift corms in fall and store indoors over winter.
At a glance
- Growing zones: 8-10 (as perennial); 3-7 (as annual)
- Sun: Full sun
- Water: Moderate
- Maintenance: Moderate
- Type: Corm
- Mature size: 2-5 ft tall · 6-12 inches wide
- Bloom season: Summer to early fall · Various (red, yellow, pink, white, purple, orange, bi-color)
- Pollinator friendly: Yes
- Container suitable: Yes
- Cold tolerance: Tender (corms lifted in colder zones)
- Heat tolerance: Excellent
- Soil: Well-drained, rich, sandy loam
- Growth rate: Fast
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