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smooth blue aster

Symphyotricum laeve

Water:
Light:
Habit:
Height:
Bloom color:
Bloom time:
low - high
full sun - part shade
upright
8 - 36"
purple - white
summer - fall

Photo credit: 

E. Conrad

Bees love blue aster because they are often the only things left blooming late in the season
Bees love blue aster because they are often the only things left blooming late in the season

Photo credit: Elliott Conrad

Petal color can be quite variable, from pink to purple to blue (and even occasionally white)
Petal color can be quite variable, from pink to purple to blue (and even occasionally white)

Photo credit: Elliott Conrad

Blue asters grow in a wide range of habitats, including forested ones
Blue asters grow in a wide range of habitats, including forested ones

Photo credit: Elliott Conrad

Bees love blue aster because they are often the only things left blooming late in the season
Bees love blue aster because they are often the only things left blooming late in the season

Photo credit: Elliott Conrad

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Smooth blue aster is another garden hero. Its superpower is the ability to bloom well after the first autumn frost, and grateful pollinators will frequent it on sunny October days when no other flowers are left. Smooth aster enjoys sun, shade, dry, moist...a true generalist. Leave it alone once it's established - too much extra water can make it very large! Prone to reseeding if you have a lot of bare ground, so cut off stalks after flowering if that doesn't appeal to you.