How To Look After Hydrangea Cuttings. Keep the bin and or cuttings in a bright warm place out of direct sun. Bend a branch down to the trench so it touches the soil in the middle of the branch six to 12 inches of branch should extend past the trench.
From those 100 plants I got about 400 cuttings. Hydrangea cuttings should reward you with a healthy root system within a month. How to Propagate Hydrangeas from Cuttings.
Take a pencil or with your index finger make a hole about 1-2 inches in the soil.
Remove the lower leaves of the bottom two leaf nodes. Cover the pots with a little horticultural grit to improve surface drainage and prevent fungal growth. Check the hydrangea cutting every few days to make sure the soil is still damp. Immediately after cutting each bloom drop the stem in the water.