We are a little puzzled; you want to replant Ilex vomitoria (Yaupon) in Blanco Co, but your e-mail came from Caldwell County. May we read beween the lines just a wee bit? Are you moving from Martindale (Caldwell County) to Blanco (Blanco Co)? Fortunately, we have a previous Mr. Smarty Plants answer that addresses this question, not between the counties noted here, but still two areas in Texas. There are more links to transplanting in that answer. The yaupon is around in a lot of places in Texas and is a tough survivor. The best time to do the transplant is now, in mid-winter in Texas.