Amsonia, Eastern Bluestar, Woodland Blue Star, Willow Amsonia 'Blue Ice'

Amsoniatabernaemontana

Family
Apocynaceae (a-pos-ih-NAY-see-ee)
Genus
Amsonia (am-SO-nee-uh)
Species
tabernaemontana (tab-er-nay-MON-tah-nuh)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
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)
USDA Zone 9b: to -3.8 °C (25 °F)
Bloom Color
Dark Blue
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Jacksonville, Florida

Saint Charles, Illinois

Winnetka, Illinois

Dracut, Massachusetts

Hopkins, Minnesota

Pontotoc, Mississippi

Litchfield, New Hampshire

Fayetteville, New York

Elizabeth City, North Carolina

Cleveland, Ohio

Williamsburg, Ohio

West Chester, Pennsylvania

Wilkes Barre, Pennsylvania

Greenville, South Carolina

Knoxville, Tennessee

Medina, Tennessee

Desoto, Texas

Mc Kinney, Texas

Concrete, Washington

Charleston, West Virginia

Madison, Wisconsin

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Gardener's Notes:

4
positives
2
neutrals
0
negative
Sort By:
Sort By:
C
ROSLINDALE, MA | July 2016 | neutral

A long-lived, adaptable plant with clean foliage. I like the flowers, whose blue color is more saturated than that of the other bluestars...Read More

R
Downingtown, PA | July 2016 | positive

My biggest customer had me plant several of this dwarf form of the Willow Bluestar in between a low stone wall and the lawn in a border a...Read More

J
Litchfield, NH (Zone 5b) | July 2016 | neutral

I just read the most recent comment on this plant (prior to mine) about how the needle-variety blue star does not seem to have the fall c...Read More

B
Concrete, WA | March 2016 | positive

This is one of those long lasting late spring bloomers that always gets attention. All visitors want to know what it is and where to get...Read More

M
Hopkins, MN (Zone 4a) | July 2011 | positive

Blue Ice is one of those mainstay/backbone of your garden type perennials. It is rather like a small shrub, and it looks good all the ti...Read More

E
(Clint) Medina, TN (Zone 7b) | May 2011 | positive

Awesome border plant. Blooms for weeks! The color is very vibrant. Very nice.

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