Purple Oxytrope, Blackish Oxytrope
Oxytropis nigrescens

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Oxytropis (ok-SEE-troh-pus) (Info)
Species: nigrescens (ny-GRESS-enz) (Info)

Category:

Alpines and Rock Gardens

Perennials

Height:

under 6 in. (15 cm)

Spacing:

Unknown - Tell us

Hardiness:

USDA Zone 2a: to -45.5 C (-50 F)

USDA Zone 2b: to -42.7 C (-45 F)

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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Dark Blue

Blue-Violet

Dark Purple/Black

Bloom Time:

Late Spring/Early Summer

Foliage:

Herbaceous

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Regional

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

Central, Alaska

Nome, Alaska

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Jul 26, 2007, Grasmussen from Anchorage, AK (Zone 4a) wrote:

Purple Oxytrope, Oxytropis nigrescens, is found on dry exposed mountain ridges and open exposed dry tundra throughout most of Alaska as well as E. Siberia and the Yukon.