Smooth: Smooth hydrangeas can also be cut back in fall or winter, and doing so can even help you get ahead before the weather starts to warm again. "Traditional smooth hydrangeas like Annabelle tend ...

New wood hydrangeas can be cut in late fall to early spring; old wood types should only be cut right after blooming. Trimming old wood hydrangeas too late removes next year’s buds, so timing is key to ...