Grape soda lupine
Lupinus excubitus
Last reviewed: October 2026
Grape soda lupine (Lupinus excubitus) is a perennial shrub native to CA, NV. It blooms in April, May, and June. The flowers draw bumble bees and bees.
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
Your city may pay you to plant this
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Browse plants for this ecoregion
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.
Growing Grape soda lupine
Grow Grape soda lupine in full sun and low water. Mature plants reach 24 to 48 inches tall and spread 24 to 36 inches wide.
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.
- 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 Grape soda lupine? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.