Hi Do you have to prune dwarf budlea plant this time of the year ;
risky, would suggest early spring for budleia, especially dwarf ones - assume the flowers are removed?
Just dead head them now, and then prune down by half in March.
I've been growing the dwarf buddlea Buzz for the past few 4 years of so. I cut it back by about a third at this time of year to stop it rocking in any winter winds and right down in springtime. Mine has thrived for me. I've got it growing in a large pot and this way I've managed to keep it at a manageable size.
Thank you all very much for your help.