A few months ago I forced some forsythia flowers, and kept them to see if they would grow roots. All I did was shorten the lower end when growth started at leaf nodes, to get some of those new nodes under water.
These are a modern, shorter variety with larger flowers. I don't know the name. Rooting ranged from lots of big roots to none. It's easy to see that new roots often emerge at the nodes, often where there is new stem growth at those nodes.
I really didn't try. I just filled the water jars when the level was low. The goal is to have the plants close together in the hedge. I think these will grow, with a little extra watering for the next month. Eventually, I want it to be a privacy hedge.
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