perennial
Delphinium elatum 'Summer Nights'
Summer Nights Larkspur
$13.77
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Essentials
At a Glance
Plant Type
Perennial
Height
48 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7
Water
Moderate
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
Europe and Asia
Toxicity
Toxic to humans and pets if ingested
The Story
Plant Bio
Tall perennial with attractive spires of flowers. A member of the New Millennium series, this cultivar is prized for its sturdy stems and stunning, deep midnight-blue flowers, often with a white bee.
Bloom Period:
J
F
M
A
M
J
J
A
S
O
N
D
EarlyLate
Uses & Benefits:
Delphinium elatum adds vertical drama with its tall spikes of vibrant flowers, perfect for garden borders and cut flowers.
Provides nectar for pollinators like bees and hummingbirds, supporting ecological health.
Supports biodiversity by attracting beneficial insects and pollinators.
Marketplace
Where to Buy
<1 Gal Pot
In Stock$13.77
<1 Gal Pot1+ Gal PotTrays
In Stock$16.99
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Choose a sunny location with well-draining soil for planting.
- Tuck seeds just below the soil surface and water gently, keeping soil moist.
- Provide consistent watering during the growing season to prevent stress.
- Fertilize monthly with a balanced, water-soluble fertilizer for vibrant blooms.
- Stake taller varieties to support their stems and prevent wind damage.
- Mulch around the base to retain moisture and suppress weeds.
Pro Tip
Plant in early spring for best growth; deadhead spent flowers to encourage more blooms.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil evenly moist 💧
- Fertilize monthly during the growing season 🌱
- Stake tall varieties to prevent flopping
Don't
- Avoid overwatering, which can cause root rot ❌
- Do not let the soil dry out completely between watering
- Avoid pruning in late fall to protect overwintering buds
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Prune | ||||||||||||
| Stake | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Tall, vibrant flower bordersColorful cut flower arrangementsWildflower meadows with a vertical accent
Companion Plants
Foxglove Lupine Columbine Shasta Daisy Coreopsis
Multiply
Propagation Methods
Good to Know