trefle.io · Taken Jun 6, 2022 by Birgitta Tittel (cc-by-sa)
Fabaceae
Nootka lupine
Lupinus nootkatensis
Also known as Lupinus perennis subsp. nootkatensis, Seashore lupine, Lupinus nootkatensis, Beach lupine
Flowering Plants · Native Plants · Lupine · Alaska Native · Pacific Northwest · Nitrogen Fixer · Blue Flowers · Pollinator · Coastal Garden · Cool Climate · Perennial · Wildflower
Nootka lupine is a vigorous, cool-climate perennial native to the Pacific Northwest and Alaska, featuring striking blue-purple flower spikes that are magnets for bumblebees and other pollinators. Plant it in well-draining, slightly acidic soil in full sun to partial shade and water regularly, especially during dry spells, as it prefers consistent moisture. As a nitrogen-fixing legume, it improves soil health over time and naturalizes beautifully in coastal or mountain garden settings.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water consistently to keep soil evenly moist but not waterlogged · Every 5-7 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 20 ft – 40 ft
- Spread
- 20 ft
- Spacing
- 24 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- Purple
- Foliage
- Green · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Alberta, Aleutian Is., British Columbia, Great Britain, Kuril Is., Newfoundland, Norway, Sakhalin, Washington, Yukon
- Attracts
- Bees, Butterflies, Birds
Sources: trefle, usda
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