Yes, arbor-vitae can be propagated from cuttings taken in late summer and planted in a cold frame or a cool greenhouse. You could also try to root them indoors in pots covered with a vented, plastic cover to raise the humidity. Take cuttings from the ends of branches, remove the tip of the branch and the lower leaves, then dip the cuttings in rooting hormone and stick them in the moistened soil. Make more cuttings than you need because some will probably not survive. Firm soil around the stems and then patiently await the new root growth. |