How To Look After Hydrangea Plants. They also love moisture so add some water-retaining crystals to the soil as you backfill. When to prune hydrangeas.
And if your flowers are looking sad Bladow suggests soaking the entire hydrangea in cool water for about 45 minutes. Macrophylla after they bloom and no later than late July. Shake them off cut the bottom of the stem and place them in water with flower food.
For best results make sure your Hydrangea is well-watered so consider placing a saucer beneath your plant to act as a reservoir.
The flowers and leaves will start to hang limply just like they do when the soil is. Deeply water 3 times a week to encourage root growth. You can also cut back leaves to shape your hydrangeas by trimming branches off just above a leaf joint. Root rot due to saturated boggy soil or pots without proper drainage.