Purple Sage

Salvia dorrii

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Lamiaceae
Genus:
Salvia
Species:
Salvia dorrii
USDA Symbol:
SADO4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Subshrub
Height:
90 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may,jun,jul
Bloom Colors:
blue, purple
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Reported Fauna Sightings

Bees: Black-tailed bumble (Bombus melanopygus), Bombus californicus, Brown-belted bumble (Bombus griseocollis), Central bumble bee (Bombus centralis), Habropoda depressa, Pyrobombus Dalla, ⚠️Western honey bee (Apis mellifera), Xylocopa sonorina, Xylocopa tabaniformis, Yellow bumble bee (Bombus fervidus), Yellow-faced bumble (Bombus vosnesenskii) Hummingbirds: Allen's Hummingbird (Selasphorus sasin), Anna's Hummingbird (Calypte anna), Selasphorus Swainson Moths:White-lined sphinx moth (Hyles lineata) Butterflies:Anise Swallowtail (Papilio zelicaon), Eastern/Western Giant (Heraclides rumiko), Fiery Skipper (Hylephila phyleus), Gray Hairstreak (Strymon melinus), Julia butterfly (Dione vanillae), Mournful Duskywing (Erynnis tristis), Mourning Cloak (Nymphalis antiopa), Painted Lady (Vanessa cardui), Sara Orangetip (Anthocharis sara), Silvery Blue (Glaucopsyche lygdamus), Small White (Pieris rapae)

Garden & Ecology Notes

Wildlife Value:
bees, hummingbirds, butterflies
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from woody base after fire; adapted to fire-prone Great Basin shrublands.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid regions, prefers dry conditions

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–30 days
Notes:
Seeds germinate best with cold stratification; light may improve germination rates.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are naturally stratified outdoors during fall months or treated with gibberellic acid (GA3). Germination is enhanced with 1 to 6 weeks of cold-moist stratification or treatment with GA3. Fluctuating diurnal temperatures and low water levels also increase germination rates. Scarification does not enhance germination.

Establishment: Seeds are collected when fruits have fully matured. Seed viability declines immediately when stored in an open warehouse, declines after 2 years when stored sealed at -15C, and remains constant or improved when stored sealed at 4C and at room temperature. There are regional variations of Salvia dorrii, including S. dorrii ssp. dorrii and S. dorrii ssp. mearnsii. Within S. dorrii ssp. dorrii there are four varieties (ecotypes): clokeyi, dorrii, incana, and pilosa.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society