I hear that Butterfly Bushes are relatively easy to start from stem
cuttings. What's the proper procedure? How long should the cuttings
be? 6" or so? Should there be a blossom on the end of the cutting,
or would it be better to find a stem with no flower on it?

As for deadheading a Butterfly Bush, just where should one make the
cut? Immediately beneath the flower cluster, or just above a
branching node?

Also, any idea as to whether different Butterfly Bushes could be
grafted on to the rootstock of a Butterfly Bush successfully? I have
rather limited full-sun areas, but would still love to have an
assortment of Butterfly Bush blooms.

Thanks much.

-Fleemo