Delphinium Dark Blue
Delphinium Dark Blue
Delphinium ‘Dark Blue’ is a compact, clump-forming perennial valued for its upright form and rich deep blue flower spikes in early to mid-summer, creating a bold vertical accent, with finely divided green foliage that may yellow and die back after flowering.
Mature Size:
Width: 12–18 in
Height: 24–36 in
USDA Zones: 3a–7b (best performance in cooler climates; may struggle in heat and humidity)
Light: Full sun to partial shade
Blooms: Deep blue flower spikes in early to mid-summer
Soil: Rich, well-drained soil
Water: Moderate; prefers consistent moisture
🌸 Landscape Uses
Perennial borders, cottage gardens, cut flowers, mass plantings
🌼 Attracts & Tolerances
Attracts: Pollinators
Tolerances: Deer resistant
- Plant type
- Perennial
- Height
- 24-36''
- Width
- 12-18"
- Hardiness zones
- 3–7
- Sunlight
- Full Sun, Partial Shade
- Growth rate
- Moderate
- Bloom time
- Early Summer, Late Spring, Summer
- Flower color
- Blue
- Leaf color
- Green
- Fall color
- Green
- Attracts
- Butterflies, Hummingbirds
- Soil
- Loamy, Well Drained
- Landscape use
- Border, Mass Planting
- Shape
- Clump, Compact
- Fragrant
- Yes
- Deer resistant
- Yes
- Drought tolerant
- No
Plant photos (1)
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