Carolina Delphinium
Delphinium carolinianum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Central and Eastern North America
Toxicity
Toxic to humans and pets
The Story
Plant Bio
Delphinium carolinianum is a perennial herbaceous plant known for its upright growth habit, deeply divided foliage, and spikes of vivid blue to purple flowers that attract pollinators. This species is notable for its adaptability to rocky and dry soils, thriving in well-drained conditions and providing striking vertical accents in wild or naturalistic garden settings.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
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Planting
How to Grow
- Tuck seeds into moist soil in early spring.
- Mist cuttings regularly to maintain humidity.
- Plant in full sun with well-drained loamy soil.
- Stake tall stems for support during bloom.
- Water regularly but avoid waterlogging.
- Divide clumps every 3-4 years in early spring.
Pro Tip
Sow seeds outdoors in early spring for best results.
Keep It Thriving
Care Guide
Do
- Water consistently during dry periods 🌱
- Mulch to retain soil moisture
- Stake tall stems to prevent toppling
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t fertilize late in the season
- Refrain from pruning after flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Prune | ||||||||||||
| 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
Carolina Delphinium questions
What zones can Carolina Delphinium grow in?
Carolina Delphinium is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Carolina Delphinium deer resistant?
Yes — Carolina Delphinium is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Carolina Delphinium bloom?
Carolina Delphinium typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Carolina Delphinium need full sun?
Carolina Delphinium does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Delphinium to compare
Delphinium 'Double Blue'
Delphinium elatum 'Double Blue'
Larkspur
Delphinium elatum 'Magic Fountain Lavender'
Belladonna Delphinium
Delphinium x belladonna 'Dark Blue Dark Bee'
Faust Delphinium
Delphinium elatum 'Faust'
Pacific Giant Delphinium
Delphinium x belladonna 'Pacific Giant'
Summer Nights Larkspur
Delphinium elatum 'Summer Nights'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Carolina Delphinium 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.
