FoliageBlue Star
Amsonia tabernaemontana
Blue Star (Amsonia tabernaemontana) is a slow-growing perennial, hardy in USDA zones 3-9, that matures to about 2-3 ft × 2-3 ft. It does best in full sun and part shade with medium water needs in well-drained, moist and occasionally-dry soil. Expect blue blooms in spring. It attracts butterflies and pollinators, stands up well to deer and drought, grows happily in containers.
- USDA zones
- 3-9
- Sun
- Full sun, Part shade
- Water
- Medium
- Mature size
- 2-3 ft × 2-3 ft
- Growth rate
- Slow
- Maintenance
- Low
- Soil
- Well-drained, Moist, Occasionally-dry, Occasionally-wet
- Bloom color
- Blue
- Bloom season
- Spring
- Attracts
- Butterflies, Pollinators
- Tough against
- Deer, Drought
- Native to
- Central United States
In the landscape
Data sources
Freeze survival
Will it survive your winters?
Hardiness zones show a normal bad winter. We check the worst one — Blue Star is hardy to about -40°F (estimated from USDA zone 3), so we'll score it against the real coldest nights your area has actually had.
Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.
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