smooth hydrangea

Smooth hydrangea (Hydrangea arborescens 'Grandiflora') is a flowering plant that enjoys frequent watering during the warmer seasons. During spring and summer, water this plant regularly by soaking the soil with 1-2 inches of water (2.5-5 cm) every week. It’s important to ensure the soil is kept moist but not wet as the plants have shallow root systems. Apart from weekly watering during the summer, water the plant 1-2 times in the autumn and once a month during the winter. Additionally, keep the soil of the hydrangea evenly moist by adding a layer of mulch around the plant.

Smooth Hydrangeas (Hydrangea arborescens 'Grandiflora') require a moderate amount of sunlight to perform their best; ideally, they should be planted in a location that receives at least 4-5 hours of direct sunlight daily. They can tolerate more, however more extensive sunlight may lead to some leaf burning or foliage scorch. If possible, it is best to provide them with some afternoon shade or dappled light to avoid this. In addition to direct sun during the day, they can also benefit from early morning sun, which can help them dry out any leftover night dew that can lead to disease.

Smooth hydrangeas should be pruned once a year, in late winter or early spring. Pruning should involve removing dead, diseased, overgrown, or unwanted stems from the plant. The shrub can also be lighty shaped, if desired. Pruning should only take off no more than 1-third of the total canes and avoid cutting too close to the buds, as this can prevent flowering. For more severe pruning, it is best to prune in spring.