[ItsDubC]

I mentioned the dry start-up method but only w/ regard to groundcover plants. Some of the plants you mentioned are stem plants that grow rather tall (AFAIK), and I don't know how vulnerable they will be in switching from emergent growth (in which the stems have to be strong enough to support the plant in air) to submergent growth (water helps support the plant upright). Also, this dry start up method becomes much less necessary for the fast-growing stems like wisteria, which will root fairly quickly regardless.

Someone w/ more experience w/ stem plants may be able to give better advice on this.