In message of Mon, 22 Mar 2004, Nick Maclaren writes
Mint grows readily if the cutting includes even a small amount of
the 'underground' stem (i.e. the bit that grows roots). Without
that, it probably won't be easy.

Mint is easiest to propagate from the root (or underground stem or
whatever it is called). It is very easy to grow new plants like this.

Just take a long strip of root, and cut into small pieces. Each piece
should have a little node on it and will probably be about half-an-inch
or so long. Place one or two pieces into small pots with moist compost.
They don't take long to root and you should have fine plants by the
summer.

If you don't have an existing plant, ask for some roots off someone who
does. It won't do the existing plant any harm - the roots are usually
rampant and plentiful. Just rip a handful off - that's what I do every
spring to supply friends with mint plants.
--
Rgds
Colette