Gladiolus

Gladiolus spp.

Iridaceae · bulbs · Africa, Mediterranean

EdibleMedium Maintenance

About Gladiolus

Dramatic sword-shaped flower spikes producing up to 20 blooms per stem in nearly every color. A florist's favorite for arrangements. Plant corms in succession for continuous summer color.

Growing Conditions

☀️

Sun

Full Sun

💧💧

Water

Medium

🌱

Soil

Rich, Well-drained

📈

Growth Rate

Fast

🌸

Bloom Season

Summer

🌈

Bloom Color

Mixed

Size & Dimensions

Height

Spread

Hardiness Zone Range

Suitable for USDA Zones 7 through 10

Plant Details

Family	Iridaceae
Category	Bulbs & Tubers
Native Region	Africa, Mediterranean
Scientific Name	Gladiolus spp.

Care Tips

✓Plant corms 4-6 inches deep after last frost.
✓Stake tall varieties.
✓Dig corms before frost in cold climates.
✓Plant every 2 weeks for continuous bloom.

Fun Facts

★The name comes from Latin 'gladius' meaning sword, referring to the leaf shape.
★Roman gladiators wore gladiolus corms as talismans.
★Each flower on the spike opens from bottom to top.

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Data verified: 2026-04

USDA Plants Database Missouri Botanical Garden

Frequently Asked Questions

What USDA hardiness zones can Gladiolus grow in?

Gladiolus (Gladiolus spp.) thrives in USDA hardiness zones 7 through 10. This means it can tolerate winter temperatures typical of these zones. Check your local zone to ensure it is suitable for your area.

How much sun and water does Gladiolus need?

Gladiolus requires full sun and has medium water needs. It grows best in rich, well-drained soil. Regular watering is recommended, especially during dry periods.

How tall and wide does Gladiolus grow?

Gladiolus typically reaches 4' tall with a spread of 8". It has a fast growth rate and requires medium maintenance. Plan your garden spacing accordingly to give it room to reach its full size.

Is Gladiolus deer resistant?

Gladiolus is not typically considered deer resistant. If deer are common in your area, consider protecting young plants with fencing or using deer repellent sprays during the growing season.

When does Gladiolus bloom and is it edible?

Gladiolus blooms in summer, producing mixed flowers. Parts of this plant are edible and can be used in cooking or eaten fresh. It belongs to the Iridaceae family and is native to Africa, Mediterranean.

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