How To Care For Hydrangea Stems. Protect new hydrangeas from sun. As you care for this type of hydrangea know that it is best to prune them in early summer right after the flowers fade.
Shake them off cut the bottom of the stem and place them in water with flower food. This way heat stress wont affect the vulnerable stem once its off the parent plant. Dont prune away stems that will bloom.
Its recommended to apply a balanced 10-10-10 fertilizer according to label directions or you can also blend organic compost into the soil each year.
Protect new hydrangeas from sun. Water the hydrangea frequently so that the soil is moist but not saturated hydrangeas require soil that is moist yet well draining so that the roots do not sit in boggy soil and rot. Shade the hydrangea from the sun to prevent drought stress. Leaf nodes are the point from where new stems and leaves grow.