Longleaf bush lupine
Lupinus longifolius
Last reviewed: September 2026
Toxicity unknown
Longleaf bush lupine (Lupinus longifolius) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
36"–72" H × 36"–60" W
Bloom
Mar, Apr, May, Jun
Native to
CA
Pollinators
bumble bees, bees
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
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A woody-based coastal shrub with silvery, palm-shaped leaves and tall spikes of blue-purple pea flowers in spring. It can become open and rangy with age and benefits from a hard prune every few years.
Wildlife value
Host plant for silvery blue butterfly.
Bumble bees are the primary pollinators of the pea-shaped flowers, and lupine foliage is a documented host for silvery blue butterfly caterpillars.
Common questions
- How much sun does Longleaf bush lupine need?
- Longleaf bush lupine grows best in full sun conditions.
- When does Longleaf bush lupine bloom?
- Longleaf bush lupine blooms in March, April, May, and June.
- Where is Longleaf bush lupine native?
- Longleaf bush lupine (Lupinus longifolius) is native to CA, per the World Checklist of Vascular Plants (Kew).
- What butterflies or moths does Longleaf bush lupine host?
- Longleaf bush lupine is a larval host plant for silvery blue butterfly.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Longleaf bush lupine? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
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