Gladiolus Large Flowering Olympic Flame (Pack of 10)

Gladiolus 'Olympic Flame'

Gladiolus Olympic Flame is a breathtaking large-flowering variety admired for its vibrant red petals ablaze with sunny yellow centers. This dazzling variety brings warmth, drama, and vertical interest to any garden space. Its upright spikes of fiery blossoms ignite flower beds and cutting gardens with early summer color. As a favorite among home gardeners and floral designers alike, it offers striking blooms and exceptional performance throughout the season.

• USDA Zones: 7–10
• Bloom Time: early summer
• Height: 50"
• Planting depth/Spacing: 5"/ 4–5"
• Deer Resistant: no
• Sun Requirements: full sun

To learn more about the gladiolus’s upkeep and maintenance, please visit our blogs and videos below.

These towering, richly colored blooms are ideal for creating bold garden focal points or adding flair to fresh bouquets. It is especially valued for its vivid contrast and dramatic height—perfect for borders, mass plantings, or mixed arrangements. The long-lasting flowers open sequentially from the bottom of the spike to the top, offering continuous color for several weeks.

Key Characteristics and Benefits of Growing Gladiolus Olympic Flame

• Fiery Color Palette: Intense red and yellow bicolor blooms mimic the look of dancing flames.
• Elegant Height: Reaches up to 50" tall, ideal for adding height to beds and floral displays.
• Seasonal Impact: Early summer bloom time fills the garden with color just as spring flowers fade.
• Excellent Cut Flower: Strong stems and layered florets make it a standout in arrangements.
• Pollinator Friendly: Attracts butterflies and beneficial insects with its vivid, open blossoms.

Growing Gladiolus Olympic Flame Corms

Plant Gladiolus Olympic Flame in spring once the danger of frost has passed. Select a sunny location with well-drained soil to meet the optimal gladiolus sun requirements of 6+ hours of direct sunlight per day. Space corms 4 to 5 inches apart and plant them 5 inches deep. Stagger plantings every two weeks through midsummer for a continuous succession of blooms. Consistent watering is important, especially during dry spells, to support tall flower spikes and robust blooms.

Climate and Soil Requirements

This variety thrives in USDA zones 7–10. In colder climates, dig and store corms after the first frost in a cool, dry place for replanting next season. Gladiolus prefers loose, well-draining soil with moderate fertility. Amend heavy clay or overly sandy soils with compost for best results.

Sunlight and Watering

Gladiolus Olympic Flame requires full sun exposure to grow strong and bloom profusely. Keep the soil consistently moist but not soggy, and avoid overhead watering to prevent disease. A layer of mulch helps retain moisture and keep weeds at bay.

Care and Maintenance

Deadhead faded flowers to encourage continuous blooming. Tall spikes may need staking in windy areas. Fertilize lightly during active growth to promote bloom production. In fall, lift corms in zones below 7, dry them thoroughly, and store indoors until spring.

For more tips on caring for flower bulbs, explore our complete Flower Bulb Growing Guide .

Multiple Trusted Brands at Grow Organic

At Grow Organic, we offer Gladiolus Large Flowering Olympic Flame from multiple trusted, high-quality brands. This ensures a diverse selection to meet your preferences—whether you’re seeking premium varieties, eco-conscious sourcing, or budget-friendly options. With more choices, you can grow with confidence and style.

Additional Gladiolus Growing Tips

For in-depth care advice and seasonal tips specific to gladiolus, be sure to explore our expert blog on Growing Summer-Blooming Flowers: Gladiolus.

Explore even more spring favorites in our Annual Flower Seeds Collection.