Delphinium laiflorum
Delphinium laxiflorum
- Native to:
- Russia
Edwards, Sydenham, 1769?-1819; Lindley, John, 1799-1865,Patterson, Harry N. (Harry Norton), 1853-1919 Patterson, Harry N. (Harry Norton), 1853-1919. Check-list of North American plants Patterson, Harry N. (Harry Norton), 1853-1919. Numbered check-list of North American plants north of Mexico,Hitchcock, A. S. (Albert Spear), 1865-1935,Suksdorf, Wilhelm N,Providence Franklin Society Noble, George H Bennett, James L. Plants of Rhode Island Providence Franklin Society,Urbina, Manuel,,,Sandberg, John Herman,Hinterhuber, Rudolph, 1802-1892 Hinterhuber, Julius, 1810-1880,Pringle, Cyrus G. (Cyrus Guernsey), 1838-1911,Howell, Thomas, 1842-1912
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ranunculaceae
- Genus:
- Delphinium
- Species:
- Delphinium laxiflorum
- USDA Symbol:
- DELA9
Growth Characteristics
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- blue, purple, violet
Garden & Ecology Notes
- Wildlife Value:
- butterflies, hummingbirds
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–28 days
- Notes:
- Requires light for germination; sow seeds on surface and maintain cool temperatures around 55°F.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Seeds should germinate at room temperature, without darkness; see http://www.delphinium.co.nz/Germination.htm