Realistically, the chances of being sued for growing your own cuttings for personal use is vanishingly small, much like making a personal copy of a DVD. You’re not going to be in danger unless you’re selling the propagated plants, widely distributing them for free, or using the propagated plants in the context of a commercial or otherwise substantially public endeavor, e.g.: a gardening show; an estate where the plants and garden are a big part of the image of the site and which is used for shows or rented for weddings and such; etc. People get patents for the purposes of making money, and there is absolutely no money to be made in suing private individuals for propagating plants in their own houses for their own use. Unlike trademarks, they don’t have to protect it or lose it – the patent is theirs for the term, as long as they keep making the appropriate payments, and they have absolute discretion to pursue an action or not against any given infringing party.
I am not a lawyer, but I do work in intellectual property. The idea that companies are spending thousands of dollars in order to sue you for making a cutting of a $10 plant is ridiculous.
