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Ozark Bluestar, Shining Blue Star

Amsonia illustris

Family: Apocynaceae (a-pos-ih-NAY-see-ee) (Info)
Genus: Amsonia (am-SO-nee-uh) (Info)
Species: illustris (il-LUS-tree) (Info)

Category:

Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

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

Where to Grow:

Unknown - Tell us

Height:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Spacing:

18-24 in. (45-60 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)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Light Blue

Bloom Time:

Late Spring/Early Summer

Foliage:

Herbaceous

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

From herbaceous stem cuttings

From softwood cuttings

From seed; direct sow outdoors in fall

From seed; stratify if sowing indoors

Scarify seed before sowing

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored

Regional

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

Iowa City, Iowa

Shawnee Mission, Kansas

Jordan, Minnesota

Cole Camp, Missouri

Elsberry, Missouri

Saint Louis, Missouri

Stoutland, Missouri

Warsaw, Missouri

Beatrice, Nebraska

Lincoln, Nebraska

Morton, Pennsylvania

Flint, Texas

show all

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Dec 17, 2008, KSBaptisia from Beatrice, NE (Zone 5b) wrote:

Beautiful native plant that is very easy to grow and long lived. The flowers only last for a couple of weeks in late spring, but the foliage looks great throughout the growing season and turns a really nice shade of gold late in the fall.

Neutral

On Nov 22, 2006, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Ozark Bluestar, Shining Blue Star, Amsonia illustris is native to Texas and other States.

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