Azure Blue Sage

Salvia azurea

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Lamiaceae
Genus:
Salvia
Species:
Salvia azurea
USDA Symbol:
SAAZ

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
150 cm
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Months:
jul,aug,sep,oct
Bloom Colors:
blue, white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Hermit sphinx (Sphinx eremitoides), Hermit sphinx (Sphinx eremitus), Sphinx lugens

Reported Fauna Sightings

Bees: Black and gold bumble bee (Bombus auricomus), Brown-belted bumble bee (Bombus griseocollis), Eastern Carpenter Bee (Xylocopa virginica), Southern plains bumble bee (Bombus fraternus), Tetraloniella cressoniana Hummingbirds: Ruby-throated Hummingbird (Archilochus colubris) Moths:Pyrausta inornatalis Butterflies:⚠️Monarch butterfly (Danaus plexippus)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, hummingbirds
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from rootstock after fire. Responds well to periodic burning in prairie management.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Prefers open, sunny locations; drought-tolerant

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate best with light exposure. Cold stratification improves germination rates.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Notes: Seeds require cold-moist stratification for 30 days before germination.

Source: Claude AI

ORGHPS Germination Guide: Most interbreed and seed may not be what is labelled

Source: Ontario Rock Garden & Hardy Plant Society