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"Smooth hydrangeas should be left to grow for several seasons then can take a hard pruning down to the ground in the spring," says Dillon. Old wood hydrangeas can be cut back by one third .
Remember that bigleaf hydrangeas bloom on old wood, so wait until after the plants complete flowering in summer to prune. At this time, strong new shoots will be developing from the crown of the ...
Always move potted hydrangeas indoors before the frost. Even a garage or shed can provide more protection than being left on an uncovered porch or deck. This method is especially important for ...
Hydrangea flower color changes based on the pH in soil. As the graph depicts, soil with a pH of 5.5 or lower will produce blue flowers, a pH of 6.5 or higher will produce pink hydrangeas, and soil in between 5.5 and 6.5 will have purple hydrangeas. Hydrangea flower color can change based on the pH in soil.
Pruning is a horticultural, arboricultural, and silvicultural practice involving the selective removal of certain parts of a plant, such as branches, buds, or roots. The practice entails the targeted removal of diseased , damaged, dead, non-productive, structurally unsound, or otherwise unwanted plant material from crop and landscape plants .
Hydrangea serrata is similar to H. macrophylla except it is a smaller more compact shrub with smaller flowers and leaves; it is also more hardy. With a rounded habit, it features dark green, serrated (toothed), ovate leaves to 15 cm (6 in) long, and clusters of long-blooming blue or pink lacy flowerheads in mid- to late summer.
Pruning too late in the season can harm your perennials, shrubs, and trees. ... clethra, and weigelia, are best pruned in late winter/early spring, Shimizu says. “With hydrangeas, it depends on ...
Then, cut plants to the ground after a killing frost in fall. Autumn pruning helps manage foliar diseases and beautifies the landscape, as peony foliage tends to turn black and unattractive in winter.