The Story
Plant Bio
Pelargonium x hortorum, commonly known as the zonal geranium, features rounded, aromatic leaves with distinctive banding and clusters of vibrant, showy flowers in various colors, often with a central eye pattern.
Pelargonium 'Rocky Mountain Orange' is distinguished by its bright, fiery orange blossoms and compact growth habit, making it an eye-catching addition to containers and flower beds.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Annual
Height
12 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
10
Water
Moderate
Humidity
Average
Lifespan
Tender perennial (often grown as an annual)
Native To
South Africa
Toxicity
Toxic to pets
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Tuck seeds or cuttings into moist soil in spring.
- Place in full sun for vibrant flowering.
- Water regularly but avoid overwatering.
- Fertilize monthly during active growth.
- Pinch back to promote bushier growth.
- Protect from frost by bringing indoors or covering.
Pro Tip
Ensure well-draining soil and plenty of sunlight for best blooms.
Keep It Thriving
Care Guide
Do
- Water deeply when soil is dry 🌱
- Pinch spent flowers to encourage new blooms
- Apply balanced fertilizer monthly
Don't
- Overwater to prevent root rot ❌
- Keep in shade during hottest part of day
- Allow soil to dry out completely between watering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Winter Prep |
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
Zonal Geranium 'Rocky Mountain Orange' questions
What zones can Zonal Geranium 'Rocky Mountain Orange' grow in?
Zonal Geranium 'Rocky Mountain Orange' is hardy in USDA Zone 10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Zonal Geranium 'Rocky Mountain Orange' deer resistant?
Yes — Zonal Geranium 'Rocky Mountain Orange' is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Zonal Geranium 'Rocky Mountain Orange' bloom?
Zonal Geranium 'Rocky Mountain Orange' 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 Zonal Geranium 'Rocky Mountain Orange' need full sun?
Zonal Geranium 'Rocky Mountain Orange' does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Zonal Geranium 'Rocky Mountain Orange' drought tolerant?
Yes — once established (usually after the first full season), Zonal Geranium 'Rocky Mountain Orange' handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Pelargonium to compare

'Lord Bute' Regal Pelargonium
Pelargonium x hortorum 'Lord Bute'

Zonal Geranium 'Appleblossom'
Pelargonium x hortorum 'Appleblossom'

Azure Rush Zonal Geranium
Pelargonium x hortorum 'Azure Rush'

Midnight Ghost Geranium
Pelargonium x hortorum 'Midnight Ghost'

White Zonal Geranium
Pelargonium x hortorum 'White'

Dark Red Zonal Geranium
Pelargonium x hortorum 'Dark Red'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Zonal Geranium 'Rocky Mountain Orange' 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.



















