trefle.io · Taken Aug 5, 2021 by Samuel McHenry (cc-by-sa)
Fabaceae
Silvery lupine
Lupinus argenteus
Also known as Silky lupine, Blue lupine, Silver lupine
Flowering Plants · Native Plants · Native Wildflower · Lupine · Nitrogen Fixer · Pollinator Plant · Mountain Meadow · Prairie · Drought Tolerant · Blue Flowers · Western Native
Silvery lupine is a hardy native wildflower that prefers full sun to partial shade and well-drained, sandy or loamy soil — it fixes atmospheric nitrogen and naturally improves soil health. Once established, it is relatively drought tolerant and requires minimal supplemental watering. Avoid overwatering or heavy clay soils, as these conditions can cause root rot.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water moderately until soil is moist at root depth; allow soil to dry out between waterings · Every 10-14 days once established
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–8
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 3 ft
- Spacing
- 18 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Arizona, British Columbia, California, Colorado, Idaho, Mexico Northeast, Mexico Northwest, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, Saskatchewan, South Dakota, Utah, Washington, Wyoming
- Attracts
- Bees, Butterflies, Hummingbirds, Moths
Sources: trefle, usda
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