Rose Supreme Gladiolus
Gladiolus hortulanus 'Rose Supreme'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Bulb Corm Tuber
Height
36 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial in suitable climates
Native To
South Africa
Toxicity
Non-toxic
The Story
Plant Bio
Gladiolus hortulanus 'Rose Supreme' is known for its striking rose-pink flowers and tall inflorescence. This cultivar is particularly noted for its large, showy flowers and vibrant color, making it a favorite for summer gardens and floral arrangements.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck corms 4 inches deep in well-drained soil in early spring.
- Water regularly to keep soil moist but not soggy during active growth.
- Fertilize every 2 weeks with balanced fertilizer during the growing season.
- Stake tall flower spikes to prevent wind damage.
- Remove dead flowers to encourage more blooms and cut back after flowering.
- Lift and store corms in fall in colder zones for winter protection.
Pro Tip
Plant corms in full sun for vibrant blooms and ensure good drainage to prevent rot.
Keep It Thriving
Care Guide
Do
- Water consistently during the growing season 🌱
- Use staking for tall flower spikes
- Apply a balanced fertilizer biweekly
Don't
- Overwater to avoid rot ❌
- Plant in poorly drained soil ❌
- Neglect staking tall stems ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harvest | ||||||||||||
| Lift Store | ||||||||||||
| Plant | ||||||||||||
| 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
Rose Supreme Gladiolus questions
What zones can Rose Supreme Gladiolus grow in?
Rose Supreme Gladiolus is hardy in USDA Zones 6–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Rose Supreme Gladiolus deer resistant?
Not reliably. Deer may browse Rose Supreme Gladiolus, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Rose Supreme Gladiolus bloom?
Rose Supreme Gladiolus typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Rose Supreme Gladiolus need full sun?
Rose Supreme Gladiolus does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Rose Supreme Gladiolus drought tolerant?
Yes — once established (usually after the first full season), Rose Supreme Gladiolus 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'
Corn Flag
Gladiolus communis
Elvira Gladiolus
Gladiolus hortulanus 'Elvira'
Glamini Dwarf Mix Gladiolus
Gladiolus hortulanus 'Glamini Dwarf Mix'
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 Rose Supreme Gladiolus 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.
