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Streamside Lupine
Lupinus polyphyllus

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Lupinus (loo-PIE-nus) (Info)
Species: polyphyllus (pol-ee-FIL-us) (Info)

Category:

Perennials

Height:

12-18 in. (30-45 cm)

Spacing:

6-9 in. (15-22 cm)

Hardiness:

USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Seed is poisonous if ingested

Bloom Color:

Bright Yellow

Blue-Violet

Bloom Time:

Unknown - Tell us

Foliage:

Grown for foliage

Blue-Green

Smooth-Textured

Other details:

Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Richmond, California

Mason, Michigan

Boone, North Carolina

Clyde, North Carolina

Kalama, Washington

Gardeners' Notes:

1
positive
2
neutrals
0
negatives
RatingContent
Positive

On Jun 18, 2005, elaird from Boone, NC wrote:

I live in the mountains of North Carolina. It rains a lot here; the elevation keeps the temperature moderate; and the soil is naturally acidic. That's pretty much the dream conditions for Lupines. Here, all you have to do is plant them and ignore them and they thrive. It's a beautiful plant. The flower is dramatic, and the leaves are unique. A young plant will have one large flowering spire, and as it matures, it can develop many spires. I highly recommend it for anyone in this region.

Neutral

On Aug 11, 2001, Evert from Helsinki
Finland (Zone 4b) wrote:

Grows like a weed in anykind of soil, even in sand. Invasive weed in Finland. Blooms in May-June here. Can grow also in US zone 2. Easy to grow from seeds, sow outside in autumn or spring.

Neutral

On Aug 10, 2001, Sis wrote:

Temp;Sensitive to high summer temps.Protect from hot,dry winds.

No serious pests or diseases.

Heavy feeders and must have moist but well-drained,acid,humus-rich soil.