Hydrangeas, with their bountiful and showy blossoms nestled amid full foliage, create a striking focal point in any sunny or partly sunny landscape. When you have a flourishing hydrangea shrub, you may wish to propagate the plant to create additional hydrangeas. Hydrangeas propagate willingly, if you nurture the cutting carefully while it roots. Take a hydrangea cutting from a thriving and healthy hydrangea shrub.
Examine the hydrangea shrub to find a suitable cutting. Time the cutting for after the hydrangea blossoms to enable you to choose a stem that will root effectively.
Choose a stem that is vibrant, with healthy leaves. Do not use a stem that produced flowers during the current growing season, because this stem will have expended energy producing blossoms.
Cut the stem off approximately 6 inches from the tip, immediately beneath a leaf node (the intersection where leaves grow from the stem).
Remove the leaves from the lowest leaf nodes, cutting the leaf stems off flush with the main stem with the pruning shears. This should leave only about four leaves at the top of the stem.
Trim the largest leaves remaining on the stem by cutting them in half. This reduces amount of water the stem needs, making it easier for the cutting to root.
Insert the bottom of the cutting into rooting hormone and then place it into a small container filled with moist vermiculite. Cover the container with a plastic bag to maintain a moist environment for the cutting and place the cutting in a warm location away from direct sunlight. Moisten the vermiculite with a spray bottle every day to keep it damp. Watch for new growth from the cutting within several weeks -- this indicates the cutting is forming new roots beneath the rooting media.