Ask Mr. Smarty Plants

That is correct. A hybridized plant will ordinarily not breed true from seeds. However, when you grow new plants from cuttings, they will be clones, i.e., identical to the parent plant. This is how most nursery stock, especially woody stock, is usually propagated.

This article from the University of Florida, IFAS Extension, Ilex x attenuata 'Savannah' has lots of good information about the culture of this plant. Since it is a hybrid (the "x" in the middle is a giveaway) we will not have it in our Native Plant Database. It is a hybrid between Ilex cassine (Dahoon) and Ilex opaca (American holly), both of which are native to North America and in our database.

Now, on to specifics. This article from North Carolina State University Plant Propagation by Stem Cuttings: Instructions for the Home Gardener has much better instructions than we can give you. We noted from this article that cuttings from hollies are best taken in the semi-hardwood state. An excerpt from that article:

"Semi-hardwood cuttings are usually prepared from partially mature wood of the current season’s growth, just after a flush of growth. This type of cutting normally is made from mid-July to early fall. The wood is reasonably firm and the leaves of mature size. Many broadleaf evergreen shrubs and some conifers are propagated by this method."

Pictures of Savannah holly from Google:

From our Native Plant Image Gallery:

Ilex opaca

Ilex opaca