Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Boraginaceae

Genus:

Phacelia

Species:

Phacelia grandiflora

USDA Symbol:

PHGR

Growth Characteristics

Life Cycle:

Annual

Growth Habit:

Forb/herb

Height:

120 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Bloom Months:

mar,apr,may,jun

Bloom Colors:

white, lavender, purple

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Pollen Specialist Bee Keystone:

★★★★☆ Native pollen specialist bee species supported by this genus (NWF)

Reported Fauna Sightings

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Native to California chaparral and coastal sage scrub; resprouts and germinates readily after fire disturbance.

Soil Requirements

Soil Type:

well-drained, sandy or rocky soil

pH:

6.0 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to coastal sage scrub and chaparral habitats

Propagation & Germination

Stratification:

None required

Germination Time:

14–30 days

Notes:

Surface sow or lightly cover; seeds require light for germination. Best sown in fall in mild climates for spring bloom.

The above propagation data sourced from Claude AI