PlantsFlowers
Threadleaf Bluestar

Amsonia hubrichtii
Zone 6a garden plant. Hardy through a Chicago winter unless the note says to pot it.
Pale blue in May, a gold mound in October
EasyFlowers
- Light
- Full sun–part shade
- Moisture
- Medium
- Mature size
- 3 ft
- Spacing
- 3 ft
- Bloom or harvest
- Flowers May, fall color Oct
- How it spreads
- Clump
- What to buy
- A gallon plant. It is slow the first year.
- When to plant
- Apr–May or Sep
In the design
Give it the width. The fall color is why it earns the space. Cut it back once in late spring only if it flops; don’t shear it into a meatball.





