| | | Family | Ranunculaceae | | Plant Type | herbaceous perennial | | Zone | USDA: 4a - 7b RHS: H EGF: H1 - H3 Australia: 1 | | Care Level | medium | | Height | 30 - 60 cm (1 - 2 ft) | | Spread | 30 - 45 cm (12 - 18 in) | | Light | full sun | | Soil Moisture | average, well-drained | | Soil Type | | | Soil pH | | | | Description | The herbaceous perennial Delphinium grandiflorum (Siberian larkspur) bears showy and faded azure blooms during early summer to mid-summer. | | Typical Uses | Annual and cut flowers. | | Special Characteristics | Butterflies are attracted to Delphinium grandiflorum . | | |