Clematis: cutting back question?, 1 by debi_z

debi_z wrote:
i have not cut back my clematis jackmanni yet, and it should have been cut back at the end of march or early april. 2 of them are leafing out up the trellis and the 3rd is only leafing out on one stem. i cut the dead ones back. anyhow, what is the best corse of action for this year? cut them back to 12-18" now? or leave them be???? or something in between???????????
looking forward to your answers.
sincerely,
debi z and franklin my gardening doggi