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Hydrangeas need to be planted in a space large enough for them to grow to their maximum size without much pruning.
Depending on the variety, flowers may appear in summer, fall or even throughout the season.
Hydrangeas are happy in sun to part shade, but too much shade will keep the plant from blooming. Plant in fertile, loamy soil. Make a hole as deep as the root ball and three times its shrubmulching.clubg: Ayer MA. Mar 25, Hydrangea arborescens, smooth hydrangea. Let these plants grow a season or two before doing any serious"hard" pruning. Once the shrub is established and has a couple of growing seasons under its belt, prune these hydrangeas in the spring down to the ground, or not at all if you want a larger shrubmulching.clubg: Ayer MA.
May 10, Prune the hydrangea to reduce its size. If your hydrangea has grown quite large, you can prune it in June or July (just after the blooming season) to contain it a bit.
For example, species like Lacecap hydrangeas bloom on old wood, while Limelight and Annabelle hydrangeas bloom on new wood.
Trim back the branches by 1/3 to the nearest joint. In most cases hydrangeas will grow back quite quickly, so you may not be able to maintain the smaller size for long%. Climbing hydrangea requires little to no pruning in the first years after planting because it grows and climbs very slowly during this period.
Prune established plants minimally but immediately after flowering to allow flower buds to establish for the following year. Prune elongated shoots and lateral branches back to a healthy shrubmulching.clubted Reading Time: 4 mins.