Superbena Cobalt Verbena
Verbena x hybrida 'Superbena Cobalt'
Essentials
At a Glance
Plant Type
Perennial
Height
10 inches
Width
24 inches
Light
Full Sun
Zones
8, 9
Water
Moderate, drought-tolerant once established
Humidity
Prefers moderate humidity
Lifespan
Tender perennial
Native To
Americas
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Garden verbena are typically low-growing, spreading tender perennials, often grown as annuals. They produce clusters (umbels) of small flowers in a wide range of colors over a long season, from spring to frost. A member of the Superbena series, 'Cobalt' is prized for its vigorous trailing habit, exceptional heat and mildew resistance, and continuous production of large clusters of intense, deep blue-violet flowers from spring to frost.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds lightly into moist soil in spring.
- Keep soil consistently moist during early growth.
- Provide full sun for optimal flowering.
- Fertilize monthly during active growth.
- Pinch back to encourage bushiness every 4 weeks.
- Mulch to retain soil moisture.
Pro Tip
Ensure well-draining soil and full sun for best blooms.
Keep It Thriving
Care Guide
Do
- Water deeply when dry 🌱
- Prune after flowering to promote new growth
- Fertilize monthly during growing season
- Mulch to conserve moisture
Don't
- Overwater to prevent root rot ❌
- Allow soil to dry out completely between watering ❌
- Ignore deadheading ❌
- Plant in heavy clay soil without amendments ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
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
Superbena Cobalt Verbena questions
What zones can Superbena Cobalt Verbena grow in?
Superbena Cobalt Verbena 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 Superbena Cobalt Verbena deer resistant?
Not reliably. Deer may browse Superbena Cobalt Verbena, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Superbena Cobalt Verbena bloom?
Superbena Cobalt Verbena typically blooms in late spring to fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Superbena Cobalt Verbena need full sun?
Superbena Cobalt Verbena does best in full sun (6+ hours).
Is Superbena Cobalt Verbena drought tolerant?
Yes — once established (usually after the first full season), Superbena Cobalt Verbena handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Verbena to compare
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Pink Sunrise Verbena
Verbena x hybrida 'Pink Sunrise'
Tall Verbena
Verbena bonariensis 'Meteor Shower'
Apple Blossom Verbena
Verbena x hybrida 'Apple Blossom'
Verbena Tex Tuf Red
Verbena x hybrida 'Tex Tuf Red'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Superbena Cobalt Verbena 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.
