Harri85274 wrote:

I read this ad where this tree grows so fast in one season. goes to 30,40 or
even 50 feet high, with gorgeous lavender blooms.

They grow fast, but NOT that fast in a single season. You can expect maybe 10-15
feet from a young tree annually, less as it matures. Contrary to what other
posts may lead you to believe, they are not a weed tree in many parts of the
country - location is the key.