Ours came from tiny (2-inch tall) seedlings that were given to me when I wrote about a glorious garden in Tulsa. That gardener's were a stand of 15-feet trees with garden furniture placed underneath. Glorious!
Here's my blog entry about Tina Logan's garden - she is the incredible gardener who gave us our baby trees in 2010.
They are pest free even in our wildscape. Hardy only in zones 7 to 9 though gardeners on Dave's Garden grow in in zones up to 11.
The flowers are celebrated in a blog post by the Scott Arboretum.
|Tina Logan's stand of Parasol Trees|
There is a photo of another stand of them at http://www.cnseed.org/firmiana-simplex-seeds-tetrapanax-hardy-palm-tree-chinese-parasol-seed.html
Forest Farm offers the plants for $12.95 plus shipping for the tube size at