bigleaf hydrangea

Bigleaf hydrangea (Hydrangea macrophylla 'Shamrock') require regular watering. In general, water your bigleaf hydrangea deeply at least once per week during the growing season and monthly in the winter. Both too much and too little water can lead to damaged or wilted leaves, so be sure to check your hydranagea regularly and adjust your watering schedule as needed. Additionally, it's best to provide water to the roots rather than the leaves.

Bigleaf hydrangea (Hydrangea macrophylla 'Shamrock') thrives in full sunlight for at least 6 hours a day from late spring to early fall. During the hottest months of the year, it should be shaded between noon and 3 pm to protect the plant from the scorching summer sun. It should receive less sunlight during the winter months. In areas with cold winters, the plant should be protected from harsh direct sunlight. During winter it is best to protect your plant from windy conditions that can dry out the leaves and provide some shade from the sun.

Bigleaf hydrangeas (Hydrangea macrophylla 'Shamrock') should be pruned in early spring, preferably sometime between February and March. During this time, remove any dead or dying stems and lightly shape the shrub if desired. Since hydrangeas bloom on previous year’s growth, avoid excessive pruning. To promote flowering, selectively prune only a few of the older growths stems down to the level of growth buds. Additionally, remove any diseased stems or damaged branches.