Species
Dahlia coccineaRed Dahlia2 other cultivars
The Story
Plant Bio
Dahlia coccinea, known as Scarlet Dahlia, is a perennial tuberous plant with tall, branching stems, vibrant scarlet-red, daisy-like flowers, and finely divided, dark green foliage.
This cultivar is distinguished by its striking, large, vivid crimson flowers that bloom freely from summer to fall, making it a standout in floral displays and garden borders.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
24 inches
Light
Full Sun
Zones
8, 9, 10
Water
Moderate
Humidity
Average
Lifespan
Perennial in suitable zones
Native To
Central America
Toxicity
Mildly toxic to dogs and cats
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Choose a sunny spot with well-drained soil.
- Tuck tubers 4 inches deep in early spring after last frost.
- Water regularly to keep soil moist but not waterlogged.
- Fertilize monthly during the growing season with balanced fertilizer.
- Stake tall varieties to support stems during peak bloom.
- Deadhead spent flowers to encourage continuous blooming.
Pro Tip
Ensure good drainage and avoid overwatering to prevent tuber rot.
Keep It Thriving
Care Guide
Do
- Tuck seeds or tubers into well-drained soil 🌱
- Mist cuttings to maintain humidity 🌱
- Prune dead or damaged stems to promote healthy growth 🌱
- Apply fertilizer monthly during active growth 🌱
- Mulch around plants to retain moisture 🌱
Don't
- Avoid overwatering to prevent rot ❌
- Don’t plant in poorly drained soil ❌
- Refrain from excessive fertilizing late in the season ❌
- Don’t forget to stake tall plants ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Lift Store | ||||||||||||
| Pinch | ||||||||||||
| Plant | ||||||||||||
| Stake |
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
Hidalgo Crimson Dahlia questions
What zones can Hidalgo Crimson Dahlia grow in?
Hidalgo Crimson 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 Hidalgo Crimson Dahlia deer resistant?
Not reliably. Deer may browse Hidalgo Crimson Dahlia, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Hidalgo Crimson Dahlia bloom?
Hidalgo Crimson 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 Hidalgo Crimson Dahlia need full sun?
Hidalgo Crimson Dahlia does best in full sun (6+ hours).
More Dahlia to compare
Dahlia
Dahlia variabilis
Dinnerplate Cutting Dahlia
Dahlia pinnata 'Dinnerplate Cutting Blend'
Hart Dahlia
Dahlia variabilis 'Hart'
Dahlia Mix
Dahlia x hybrida 'Mix'
Babette Giant Ball Dahlia
Dahlia pinnata 'Babette Giant Ball'
Lady Darlene Dahlia
Dahlia pinnata 'Lady Darlene'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Hidalgo Crimson 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.