Q.rooting dusty miller plants
Can you root a dusty miller in water or just put in dirt or neither? I have dusty miller that is long and leggy, can I cut and root in water or dirt?

Yes, Dusty Miller can be propagated by stem cuttings. Plant the cuttings in a moist perlite and peat mixture, covered with plastic in an area with bright light.
Just curious, but is your dusty miller in the sun or shade? Dusty millers are more long and leggy when they are located in shady locations.
For more information on the care of dusty millers, please visit the following link:
https://www.gardeningknowhow.com/ornamental/foliage/dusty-miller/growing-dusty-miller.htm