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Grape soda lupine

Lupinus excubitus

Last reviewed: September 2026

Grape soda lupine (Lupinus excubitus)

Toxicity unknown

Grape soda lupine (Lupinus excubitus) 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

24"–48" H × 24"–36" W

Bloom

Apr, May, Jun

Native to

CA, NV

Pollinators

bumble bees, bees

Before you buy

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A woody-based shrub lupine with palmate gray-green leaves and tall spikes of fragrant purple flowers, forming an open rounded shrub in dry, rocky habitats.

Wildlife value

Host plant for Boisduval's blue.

An important nectar plant for bumble bees and a larval host for Boisduval's blue and other lupine-dependent butterflies.

Common questions

How much sun does Grape soda lupine need?
Grape soda lupine grows best in full sun conditions.
When does Grape soda lupine bloom?
Grape soda lupine blooms in April, May, and June.
Where is Grape soda lupine native?
Grape soda lupine (Lupinus excubitus) is native to CA, NV, per vouchered herbarium specimen records and regional native plant society lists.
What butterflies or moths does Grape soda lupine host?
Grape soda lupine is a larval host plant for Boisduval's blue.

Native range data from vouchered herbarium specimen records and regional native plant society lists. 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.

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Ready to grow Grape soda lupine? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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