Q.I Have A Blue Aster Shrub That Has Grown Quite Large. How Far Should I Cut This Back ?
Also I need to even out the shrub. Will all the flowers return on the side that I evened out ?

GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on October 26, 2022
Unless it is very woody, it should die back during the winter. Then in the spring, cut back to the ground any remaining stems.
Till about July, you can pinch back the growing stems to keep the growth in check.
https://www.gardeningknowhow.com/ornamental/flowers/asters/pruning-aster-plants.htm
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