I also grow the Plectranthus Mona Lisa, but I have not rooted it yet, although I talk about it constantly. It just seems that those succulent stems are just begging to be rooted and would be so easy, but maybe not. I plan to take some cuttings before cold weather sets in anad will root some with rootone in cups with plastic lids like I do most everything. I will try some in willow water and try to root them that way. Here is my thinking: Many plants root very well in willow water, and all varieties of perennial Lobelial do. The fresh stems of "Mona Lisa" are similar to Lobelia, so maybe they will root as well, but it's just a guess. I will try some tomorrow and let you know in a few weeks how they do. If you can find a willow tree around, you can do the same.
