I found heel cuttings root best in winter in a light porous mix in very cool
temps. From a cut stem, rip side braches downward taking a piece of the
parent stem with it. I use rooting hormone, stick in a flat that's probably
half perlite, half peat. Keep the nights above freezing and days in the
40's. Do not allow to dry out or flood. You'll always have some that don't
root, but most will in about 2-3 months.

"Anne" wrote in message
m...
Does anyone know how to propagate rosemary by stem? I live in
Vancouver, Canada and have tried a few times with no success. The
stem and leaves just turned black after a few days. Thanks in advance
for your feedback.