Fabaceae
San jacinto lupine
Lupinus hyacinthinus
Also known as mountain lupine, Lupinus albicaulis var. hyacinthinus, San Jacinto Mountains lupine, Lupinus formosus var. hyacinthinus
Flowering Plants · Native Plants · Lupine · Native · California · Pollinator · Nitrogen-Fixer · Wildflower · Perennial · San Jacinto · Blue Flowers · Fabaceae
San Jacinto lupine is a striking native perennial from California's mountains, producing tall spikes of vivid blue-violet flowers beloved by pollinators. It prefers well-drained, slightly acidic soils in partial shade to full sun, and like other lupines, it fixes nitrogen in the soil, benefiting neighboring plants. Avoid overwatering and heavy clay soils, as root rot can be an issue in poorly drained conditions.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water deeply to encourage deep root development, allowing the top inch to dry between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- sandy loam
- Soil pH
- 6–7
- Temperature
- -40°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 18 in
- Spacing
- 24 in apart
- Growth rate
- Fast
- Root depth
- Deep
- Flowers
- Yes
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- California
- Attracts
- Bees, Butterflies, Hummingbirds
Sources: trefle, usda
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