Family: Apocynaceae (a-pos-ih-NAY-see-ay) (Info)
Genus: Amsonia (am-SO-nee-uh) (Info)
Species: illustris (il-LUS-tree) (Info)
 5 vendors have this plant for sale.
Category:
Perennials
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:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Soil pH requirements:
Unknown - Tell us
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
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