Amsonia hubrectii (Threadleaf Blue Star)

The thread-leaf amsonia (blue star) is one of our favorite fall perennials.  The thread-like leaves turn a vivid yellow in the fall to usher in the cold of winter.  This is a truly remarkable visual when planted en masse (large groups).  Equally attractive is the spring foliage of deep green that gives ways to steel blue flowers in May with the display lasting through July here in in Delaware.  The foliage remains attractive until those rich golden hues start arriving in September with October providing the big show.  The foliage slowly turns to a cheddar cheese color and then amber brown by January.  This prairie native is superb in mass plantings, incorporating in the perennial border, and for meadow plantings.  Songbirds love playing in and around the thick foliage.
Mature Plant Size: 36"- 48" Tall, 24" Spread 
Bloom Time: Late Spring - Summer
Light Exposure: Full Sun
Soil Type/pH: Well-drained/6.0-7.0
Hardiness Zones: 5-9
Fertilizer:  If using compost apply an 1" at planting time and side dress annually in late fall or early spring.  If using a granular fertilizer, we recommend organic formulations, apply an all-purpose formula in early spring annually.  It is only recommended to use liquid fertilizers when the growth is slow, and this is not normally needed.
Container Size: 4.5" Pot