Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Fabaceae

Genus:

Lupinus

Species:

Lupinus bicolor

USDA Symbol:

LUBI

Growth Characteristics

Life Cycle:

Annual

Growth Habit:

Forb/herb

Height:

40 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Bloom Months:

mar,apr,may,jun

Bloom Colors:

blue, purple, white

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Caterpillars:

★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:

★★★★☆ Butterfly & moth species supported by this genus (NWF)

Pollen Specialist Bee Keystone:

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

Host Plant for Caterpillars

Reported Fauna Sightings

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from crown after fire; seeds may benefit from fire-cleared ground. Common in post-fire successional habitats.

Soil Requirements

Soil Type:

sandy, well-drained, nutrient-poor soil

pH:

5.5 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

Commonly found in open, disturbed areas.

Propagation & Germination

Stratification:

Cold/moist stratification required — 7–14 days

Scarification:

Seed coat scarification required before sowing

Germination Time:

14–30 days

Notes:

Scarify seed coat by nicking or soaking in hot water before cold stratification. Light not required for germination.

The above propagation data sourced from Claude AI