From the type of replies you have gotten, it is clear that most have a
rather distorted or incorrect view of what a cultivar actually represents.

A cultivar is a plant selected for its horticultural or agricultural merit
and is a plant that is given a fancy name instead of a botanical ranking. It
differs from a botanical species (or any other botanical ranking) by not
being at all representative of a wild population of plants and is often
atypical in some way of the the usual range of variation found in a
particular plant. It can be derived from a mutation grown from seed, a
hybrid or even selected from plants growing in the wild. They do not need to
be man made crosses.

Many cultivars are propagated vegetatively from division or grafting because
most do not breed true from seed. The mode of propagation does not determine
what is a cultivar, however.

Cultivars are not produced from grafting. You are confusing them with
chimeras. Many chimeras are grown as cultivars, however.

For a more info on cultivars and their naming, see the following:

http://www.ishs.org/sci/icraname.htm


Peter Jason wrote in message
...
Please help.