I have a lot of Allamandas (dwarf, bush), Hibiscus (Hula girl, Swamp, Lord Baltimore) and Hydrangeas and would like to know what type of care should be taken during the winter months?
They are supposed to be perennials, with Hula girl actually being an evergreen, but is it best to remove them from the ground and store in a greenhouse? Otherwise, should I simply cut them back and leave in the ground? I think the latter is sufficient but then again I don't want to lose these...
I also have some Morning Glory Tree's (6 to 8 ft.) as seen HERE. Can anyone confirm whether this variety is a perennial or otherwise what care should be taken during winter?