Fabaceae
Lupinus arcticus subsp. subalpinus
Lupinus arcticus subsp. subalpinus
Also known as Lupinus glacialis, Lupinus arcticus var. subalpinus, Lupinus rainierensis, Lupinus subalpinus
Flowering Plants · Native Plants · Lupine · Subalpine · Wildflower · Perennial · Native · Pacific Northwest · Pollinator · Blue Flowers · Legume · Cool Climate
The Subalpine Lupine thrives in cool, partly shaded spots with consistently moist, well-draining soil — ideal for rock gardens or naturalized mountain-style landscapes in the Pacific Northwest. Plant it where it receives morning sun and afternoon shade, and avoid waterlogged conditions. As a nitrogen-fixing legume, it improves soil health and requires minimal fertilization.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water thoroughly until soil is evenly moist, allowing the top inch to dry between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- sandy loam
- Soil pH
- 5–7.5
- Temperature
- -40°F to 85°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 2.5 ft
- Spread
- 12 in
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Deep
- Flowers
- Yes
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alberta, British Columbia, Oregon, Washington
- Attracts
- Bees, Butterflies, Hummingbirds
Sources: trefle, usda
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