Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Ranunculaceae

Genus:

Delphinium

Species:

Delphinium grandiflorum

USDA Symbol:

DEGR80

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Geophyte

Height:

90 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

jun,jul,aug,sep

Bloom Colors:

blue, purple, pink, white

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Reported Fauna Sightings

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

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

Notes:

prefers cool climates, avoid waterlogging

Propagation & Germination

Stratification:

Cold/moist stratification required — 14–28 days

Germination Time:

14–30 days

Notes:

Seeds benefit from cold stratification for 2-4 weeks before sowing; germination occurs in 2-4 weeks at 15-20°C.