Buddleia likes soda bottles and coir, too
So what else have you rooted in pop bottles or baggies?
I decided to propagate some of my buddleia to mix into a new rose bed, and treated it exactly like rose cuttings. WOW, did buddleia root fast (~10-14 days and roots are coming out of the drain holes). I am trying honeysuckle vine now, but it does not look happy. Was able to root russian sage earlier this summer.
Any other suggestions?