Species
Delphinium elatumTall Larkspur9 other cultivars
‘Double Blue’Delphinium 'Double Blue'
‘Magic Fountain Lavender’Larkspur
‘Summer Nights’Summer Nights Larkspur
‘Faust’Faust Delphinium
‘Cobalt Dreams’Cobalt Dreams Delphinium
‘Marble Delight’Marble Delight Delphinium
‘Blue Buccaneers’Blue Buccaneers Delphinium
‘Morning Lights’Morning Lights Delphinium
‘Dusky Maidens’Dusky Maidens Delphinium
The Story
Plant Bio
Delphinium elatum 'Purple Passion' is a tall, elegant perennial with deeply lobed, lush green foliage and striking spikes of vibrant purple flowers that attract pollinators and add vertical interest to garden borders.
This cultivar is distinguished by its intense purple coloration and robust flowering habit, making it a standout choice for creating dramatic garden displays and cut flower arrangements.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
72 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7
Water
Regular watering, especially during dry periods
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
Eurasia
Toxicity
Toxic to humans and pets if ingested
Bloom period
Early summer – Late summer
In flower about 3 months of the year
Planting
How to Grow
- Tuck seeds just below soil surface in early spring.
- Water regularly to keep soil moist but not waterlogged.
- Provide support for tall flower spikes as they grow.
- Fertilize with a balanced fertilizer every 4–6 weeks.
- Deadhead spent flowers to encourage more blooms.
- Divide plants every 3–4 years in early spring.
Pro Tip
Plant in well-drained, fertile soil with full sun for best results.
Keep It Thriving
Care Guide
Do
- Water consistently during dry spells 🌱
- Stake tall spikes to prevent bending
- Remove spent flowers to promote reblooming
Don't
- Avoid overwatering to prevent root rot ❌
- Do not fertilize with high nitrogen in late season
- Keep away from heavy, clay soils without amendments
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| 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
Delphinium Purple Passion questions
What zones can Delphinium Purple Passion grow in?
Delphinium Purple Passion is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Delphinium Purple Passion deer resistant?
Not reliably. Deer may browse Delphinium Purple Passion, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Delphinium Purple Passion bloom?
Delphinium Purple Passion typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Delphinium Purple Passion need full sun?
Delphinium Purple Passion 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'
Summer Nights Larkspur
Delphinium elatum 'Summer Nights'
Faust Delphinium
Delphinium elatum 'Faust'
Pacific Giant Delphinium
Delphinium x belladonna 'Pacific Giant'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Delphinium Purple Passion 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.