Japanese Maple 'Sharp's Pygmy'

I've only had this tree for a year and it has so far lived up to its name, however, in the 4th edition of JD Vertrees' book "Japanese Map...Read Moreles" the information for this tree includes this tidbit that I thought would be useful potential buyers: "This outstanding cultivar is one of the smallest palmatum cultivars, but is not a dwarf as originally supposed . . . 'Sharp's Pygmy' forms a densely foliaged, compact, low-spreading tree up to 3m (10 ft.) tall. It needs no pruning or training to give it a bonsai -like appearance. It is a truly remarkable dwarf."

So I'm a bit confused. It may or may not be a dwarf in 10 years but so far this tree has remained small (about 12-16 inches) for me.

I've had this plant since 1999 and it is still only 8 inches tall! It is one of the smallest dwarf Japanese maples available. It is unu...Read Moresual in that it is one of the few grown from cuttings rather than grafting. It is ideal for bonsai, a rock garden or a small container. Spring foliage is green with a red cast, becoming green in summer then a mix of yellow, orange and red in fall. Truly a spectacular dwarf!