On Thu, 08 Jun 2006 18:15:17 -0500, Treedweller
wrote:

On Thu, 08 Jun 2006 12:57:22 GMT, Jangchub wrote:

Cedar elm is native, but not the most exciting shade tree. I planted
a Chinese pistache 5 years ago as a sapling and it's 15 feet now.
[snip]
After years on the "preferred" list, pistache has been added to a "Do
not plant" list in Austin because it is invasive. It also tends
toward tight crotches that may break as the tree gets larger. It has
good points, but I lean towards "avoid it."

K

Whose "preferred" list has it been removed from? How are they
invasive? Just asking.