The Story
Plant Bio
Crocosmia x crocosmiiflora is a robust, cormous perennial known for its arching spikes of brilliant, funnel-shaped flowers and sword-like leaves.
This hybrid is known for its vigorous growth, vibrant flowers in shades of red, orange, and yellow, and its ability to attract hummingbirds.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Bulb Corm Tuber
Height
36 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8, 9, 10
Water
Moderate
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
Southern Africa
Toxicity
Non-toxic, but corms may cause mild stomach upset if ingested
Planting
How to Grow
- Tuck corms 4-6 inches deep in well-draining soil in spring.
- Water thoroughly after planting to settle soil around corms.
- Fertilize with a balanced fertilizer in early spring and mid-summer.
- Divide clumps every 3-4 years in early spring or late fall.
- Stake tall flower stalks to prevent toppling during bloom.
- Remove spent flowers to encourage new growth and maintain appearance.
Pro Tip
Plant in full sun for best flowering and ensure soil is well-draining to prevent rot.
Keep It Thriving
Care Guide
Do
- Water regularly during active growth 🌱
- Apply a balanced fertilizer in spring and summer
- Stake tall flower stalks for support
Don't
- Avoid overwatering to prevent bulb rot ❌
- Don’t plant too shallow; ensure corms are 4-6 inches deep
- Refrain from heavy pruning in late fall
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Montbretia questions
What zones can Montbretia grow in?
Montbretia is hardy in USDA Zones 5–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Montbretia deer resistant?
Yes — Montbretia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Montbretia bloom?
Montbretia 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 Montbretia need full sun?
Montbretia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Montbretia drought tolerant?
Yes — once established (usually after the first full season), Montbretia handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Crocosmia to compare

Lucifer Crocosmia
Crocosmia x crocosmiiflora 'Lucifer'

Masonorum Mason's Crocosmia
Crocosmia x crocosmiiflora 'Masonorum'

Walberton's Yellow Montbretia
Crocosmia x crocosmiiflora 'Walberton Yellow'

Carmin Brilliant Montbretia
Crocosmia x hybrida 'Carmin Brilliant'

Emily McKenzie Crocosmia Montbretia
Crocosmia x hybrida 'Emily Mckenzie'

Crocosmia 'Prince of Orange'
Crocosmia x crocosmiiflora 'Prince of Orange'
Keep exploring
Explore the genus
Grow Montbretia 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.



