Corn Flag
Gladiolus communis
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Bulb Corm Tuber
Height
36 inches
Width
6 inches
Light
Full Sun
Zones
5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial in suitable zones
Native To
Mediterranean region
Toxicity
All parts are toxic if ingested, especially the corms.
The Story
Plant Bio
Gladiolus communis, commonly known as the sword lily, features tall flower spikes with trumpet-shaped blooms, typically in shades of red, purple, or white. This species is known for its hardiness and ability to thrive in various soil types, making it a popular choice in gardens.
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck corms 4 inches deep in well-draining soil in spring.
- Water regularly to keep soil moist but not waterlogged.
- Provide full sun for optimal flowering.
- Fertilize monthly with a balanced fertilizer during growing season.
- Stake tall flower stalks to prevent bending.
- Allow leaves to die back naturally after blooming to store energy.
Pro Tip
Plant corms in a sunny spot with rich, well-draining soil for best blooms.
Keep It Thriving
Care Guide
Do
- Water consistently during active growth 🌱
- Apply fertilizer monthly during blooming season
- Stake tall flower stems for support
Don't
- Avoid overwatering to prevent rot ❌
- Don’t disturb bulbs during dormancy
- Never neglect staking tall stems
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Harvest | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup | ||||||||||||
| Stake |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Corn Flag questions
What zones can Corn Flag grow in?
Corn Flag is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Corn Flag deer resistant?
Not reliably. Deer may browse Corn Flag, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Corn Flag bloom?
Corn Flag typically blooms in late spring to early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Corn Flag need full sun?
Corn Flag does best in full sun (6+ hours).
Is Corn Flag drought tolerant?
Yes — once established (usually after the first full season), Corn Flag handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Gladiolus to compare
Galaxian Hybrid Gladiolus
Gladiolus x hybrida 'Galaxian Hardy'
Elvira Gladiolus
Gladiolus hortulanus 'Elvira'
Glamini Dwarf Mix Gladiolus
Gladiolus hortulanus 'Glamini Dwarf Mix'
Rose Supreme Gladiolus
Gladiolus hortulanus 'Rose Supreme'
Fringed Coral Lace Gladiolus
Gladiolus x hortulanus 'Fringed Coral Lace'
Ben Venuto Gladiolus
Gladiolus hortulanus 'Ben Venuto'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Corn Flag with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
