The Story
Plant Bio
A bold and vibrant cultivar with large, single flowers that exhibit a cheerful red color.
Known for its vivid flowers that attract pollinators and its ability to thrive in various soil types.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Full Sun
Zones
8, 9, 10
Water
Moderate
Humidity
Moderate
Lifespan
Tender perennial
Native To
Mexico
Toxicity
Mildly toxic to pets if ingested
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Tuck seeds or tubers into well-draining soil in early spring.
- Water thoroughly after planting to promote root development.
- Place in full sun for optimal bloom production.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Pinch back the stems to encourage bushier growth, after initial sprouting.
- Divide tubers every 2-3 years for healthier plants and better blooms.
Pro Tip
Use organic compost to enrich soil and promote vibrant blooms.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not waterlogged 🌱
- Deadhead spent flowers to encourage continuous blooming
- Stake tall varieties to prevent wind damage
- Apply mulch to retain moisture and suppress weeds
Don't
- Avoid overwatering which can cause tuber rot ❌
- Don’t expose plants to frost; dig up tubers for winter
- Refrain from using excessive fertilizer that can lead to weak stems
- Don’t forget to remove weeds that compete for nutrients
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Lift Store | ||||||||||||
| Pinch | ||||||||||||
| Plant |
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
Happy Single Romeo Dahlia questions
What zones can Happy Single Romeo Dahlia grow in?
Happy Single Romeo Dahlia is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Happy Single Romeo Dahlia deer resistant?
Not reliably. Deer may browse Happy Single Romeo Dahlia, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Happy Single Romeo Dahlia bloom?
Happy Single Romeo Dahlia 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 Happy Single Romeo Dahlia need full sun?
Happy Single Romeo Dahlia does best in full sun (6+ hours).
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Lady Darlene Dahlia
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Keep exploring
Explore the genus
Hardy in your zone?
Grow Happy Single Romeo Dahlia 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.