Flashback Dahlia
Dahlia variabilis 'Flashback'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Full Sun
Zones
8, 9
Water
Moderate
Humidity
Moderate
Lifespan
Perennial in warm zones, annual elsewhere
Native To
Americas
Toxicity
Toxic to dogs and cats
The Story
Plant Bio
Dahlia variabilis 'Flashback' features striking multicolored blooms that attract pollinators and brighten up gardens. The 'Flashback' cultivar is known for its vibrant, bi-colored flowers that resemble fireworks, making it a standout in any garden.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds or tubers into well-draining soil in early spring.
- Water regularly to keep soil moist but not waterlogged.
- Provide full sun for optimal flowering.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Pinch back young plants to encourage bushier growth.
- Lift tubers in fall after foliage dies back and store in a cool, dry place.
Pro Tip
Plant tubers at a depth twice their size for vigorous growth and abundant blooms.
Keep It Thriving
Care Guide
Do
- Water consistently during dry spells 🌱
- Apply a balanced fertilizer monthly
- Stake tall varieties to prevent wind damage
Don't
- Avoid overwatering to prevent rot ❌
- Don’t plant in poorly drained soil
- Refrain from cutting back all foliage in fall
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Lift Store | ||||||||||||
| Pinch | ||||||||||||
| 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
Flashback Dahlia questions
What zones can Flashback Dahlia grow in?
Flashback 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 Flashback Dahlia deer resistant?
Not reliably. Deer may browse Flashback Dahlia, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Flashback Dahlia bloom?
Flashback 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 Flashback Dahlia need full sun?
Flashback Dahlia does best in full sun (6+ hours).
More Dahlia to compare
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Dahlia variabilis
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Dahlia x pinnata 'Dinnerplate Cutting Blend'
Hart Dahlia
Dahlia variabilis 'Hart'
Babette Giant Ball Dahlia
Dahlia x pinnata 'Babette Giant Ball'
Lady Darlene Dahlia
Dahlia x pinnata 'Lady Darlene'
Mystic Haze Dahlia
Dahlia x pinnata 'Mystic Haze'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Flashback 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.
