How to Start Hydrangeas From Cuttings
Looking for a way to grow your garden without a lot of money? By sharing plants among friends or increasing the ones you already have, you can fill your landscape and save hundreds of dollars doing it.
To start hydrangeas from cuttings, prepare a starting mix of equal parts milled peat moss and coarse vermiculite. Make sure the ingredients are evenly mixed and moist throughout. This mix will retain enough moisture to keep the cuttings from drying out initially, and it will allow the young roots to expand through the mix as they grow.
Cut the top six inches of the branch, making the cut two inches or so below the leaf node (this is the junction where a leaf sprouts or sprouted from the branch). Remove all except the top two leaves.
Cut the top two leaves in half to reduce loss of water through transpiration. Dip the base of the cutting into the rooting hormone (if you are using it) then put the cutting into the premade hole.For a half gallon container, one cutting per pot should be sufficient. For a larger (three or five gallon) container, you may wish to use up to five cuttings, removing the two weakest cuttings as the others develop.
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Make sure there is plenty of drainage...Hygran. can't live is soggy places, Will rot, I always start ny cuttings in reg. pot or ground & watch carefully & protect from cutting down with a lawn mower..Not is all day of SUN...Too much SUN will burn it up.."GOOD LUCK"!
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I just put the limbs on the ground and weigh it down with a brick and they will root in the ground. You can cut them above where the brick is and transplant the cutting which should have roots on it.
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I tried this with the PG Hydrangea cuttings this summer and managed to get six to root. I have transplanted them to larger pots and because we have really cold winters with -40C sometimes I do not know what to do with them now. Do I bring them in the house until next Spring so they can be planted out at that time? Does anyone know??