By pruning right after the blooms have faded, you allow the plant time to set buds for the next year. Prune Incrediball hydrangea plants anytime between the first hard frost of fall and early spring. Pruning can allow more sunlight and air to filter through the trees and shrubs, which can help keep them healthy. Prune out deadwood and weak growth. That may be why she recommends a different pruning schedule. https://homeguides.sfgate.com/should-cut-hydrangea-back-fall-97045.html They do flower on new growth so hard pruning if necessary will not affect flowering but can … This causes more energy and nutrients to be available to the plant. Hydrangeas that bloom on old wood should be pruned in summer before they set buds for the following year. It will grow from that point onward, getting larger each year. "Hydrangeas set flower buds for the following season in fall, so if you cut it back, you are cutting off all of the blooms," explains McEnaney.Instead, hydrangeas should be pruned in the spring—preferably past Father's Day, if you can wait that long. Most gardeners opt for an early-spring pruning, taking advantage of the visual interest the dried flower heads add to the fall yard. Hydrangeas of this type produce flowers from side shoots, which can be pruned in fall after blooming has ceased. you can prune them back in fall, but here in Minnesota, we like the winter interest the dried flower heads provide, so we recommend waiting to prune hydrangeas in late winter / early spring. The timing of pruning for hydrangeas depends on which type of hydrangea you’d like to prune. Cut back shoots to the last healthy bud. Lacecaps can be treated the same way or, as they are hardier than mopheads, can be pruned in autumn after the flowers have finished their late summer display. Cut back after flowering to the second pair of leaves below the head in order to prevent seed developing. It will grow from that point onward, getting larger each year. Prune as far back as you want right above the first leaf joints. When it's time to prune, focus first on removing dead or dying branches. Exactly what you do depends on what kind of hydrangea you have and where it lives. If your hydrangeas live in a cold climate, late fall weather is the perfect time for them to harden off, you can use this same time to prepare them to make it through the coming winter. Annabelle Hydrangeas offer pure white clusters of flowers, enormous in size, from June through fall.These flowers can reach up to 6 feet in height and require space to stretch. When to prune hydrangea bushes varies and is not an exact science. Hydrangeas should never be pruned in the fall.Why? Fall Blooming. Prune in late winter and early spring. If you don’t prune hydrangeas, they will flower just fine. 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