Elms can be struck as hardwood cuttings too, but the success rate is low, perhaps 30 percent here. You take dormant cuttings, make a slight notch in one side of the base and dip in 8000 ppm IBA, rooting hormone. Pot them up and put a plastic bag over them. Put a few holes in the bag for air and to discourage mould. Place them somewhere warm, like a heating pad on low. The rooting medium seems to need to be warm. They need a south window too, or a grow light. The ones that flush too early will usually die, as the cut end seals up with callus at about 5 weeks and they then don't get enough water and wilt out. The ones that flush later may make roots at the site of the callus and survive. Grafting onto a seedling and then laying the grafted tree over works better. You wait till the grafted tree is 2 or 3 feet tall, then plant in loose soil at an angle so you can peg the trunk down flat. Bury the trunk and keep it well watered so it will send up verticles as each branch grows. You can scrape a bit of the bark off at the base of each, treat with rooting hormone and wait for roots. Sometimes it takes quite a while, so just water and wait. Otherwise, try the softwood cuttings like the previous person or so said.

Most perennial Begonis may be propagated brom a stem cutting (piece of broken off stem) remove all but tip leaf. Apply 0.1% IBA (Rooting hormone) stick in well drained soil & mist roots in 15-45 days

Lindsay, I would also take a couple of branches that are growing close to the soil and carefully put a brick or stone on the branch to keep it in contact with the soil. Make sure to have one or more leaf nodes in contact with the soil. Leave the rock - brick or other heavy object on the branch and by summer or fall, the branch will root where it is in contact with the soil. Some propagators nick the branch and apply some rooting hormone where the branch in in the soil. Cut the branch from the mother plant when the roots are several inches and pot them up. Or, you can cut the branch from the mother plant but leave it where it is and pot up in the fall or the following spring. It is possible that the branches will have bloomed along with the mother plant so cut off the bloom and some of the length of the cutting when you pot it. I have found that some old hydrangeas are difficult to propagate - not sure why - and this will be a back-up just in case your other cuttings do not make it.

Bumping.